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Zhang M, Li M, Ma J. The role of long-lived plasma cells in viral clearance. J Biol Dyn 2024; 18:2325523. [PMID: 38445631 DOI: 10.1080/17513758.2024.2325523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 02/21/2024] [Indexed: 03/07/2024]
Abstract
The adaptive immune system has two types of plasma cells (PC), long-lived plasma cells (LLPC) and short-lived plasma cells (SLPC), that differ in their lifespan. In this paper, we propose that LLPC is crucial to the clearance of viral particles in addition to reducing the viral basic reproduction number in secondary infections. We use a sequence of within-host mathematical models to show that, CD8 T cells, SLPC and memory B cells cannot achieve full viral clearance, and the viral load will reach a low positive equilibrium level because of a continuous replenishment of target cells. However, the presence of LLPC is crucial for viral clearance.
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Affiliation(s)
- Mingran Zhang
- College of Information Science and Technology, Donghua University, Shanghai, People's Republic of China
| | - Meili Li
- College of Science, Donghua University, Shanghai, People's Republic of China
| | - Junling Ma
- Department of Mathematics and Statistics, University of Victoria, Victoria, BC, Canada
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2
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Zou Q, Wu Y, Zhang S, Li S, Li S, Su Y, Zhang L, Li Q, Zou H, Zhang X, Wang T, Liang S, Yang J, Li C. Escherichia coli and HPV16 coinfection may contribute to the development of cervical cancer. Virulence 2024; 15:2319962. [PMID: 38380669 PMCID: PMC10883084 DOI: 10.1080/21505594.2024.2319962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 02/09/2024] [Indexed: 02/22/2024] Open
Abstract
Persistent human papillomavirus HPV infection is a necessary but insufficient condition for cervical cancer. Microorganisms are crucial environmental factors in cancers susceptibility and progression, recently attracting considerable attention. This study aimed to determine the infection status and relationship between high-risk HPV (HR-HPV) and lower genital tract infectious pathogens in cervical cancer and its precursors. From a retrospective and a prospective cohort analysis, Escherichia coli (E. coli) dominated the pathogens isolated from cervical discharges, and an isolation rate uptrend has been shown recently. HPV16 and E. coli's coinfection rate gradually increased with the severity of cervical intraepithelial neoplasia. The adhesion and invasion abilities of the isolated E. coli to HPV16-positive SiHa cells were evaluated in vitro. The TCGA database and cervical tissues samples analysis showed that IL-10 was upregulated in cervical cancer. IL-10 expression levels increased in tissue samples with the severity of cervical cancer and its precursors with HPV16 and E. coli coinfection. Although no significant changes in IL-10 production were observed in the co-culture supernatant, we hypothesized that Treg immune cells in the tumour microenvironment might be responsible for the local IL-10 upregulation, according to our data showing Foxp3 upregulation and an upward trend with the cervical intraepithelial neoplasia grading to cancer and tumours with E. coli and HPV16 coinfection. Our data provide insights into the possible role of E. coli in cervical cancer progression and suggest that the application of HPV and E. coli screening programs may be an effective strategy to relieve the burden of cervical cancer and its precursor lesions.
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Affiliation(s)
- Qin Zou
- Department of Clinical Laboratory, Women and Children's Hospital of Chongqing Medical University, Chongqing Health Center for Women and Children, Chongqing, China
| | - Yingying Wu
- Department of Clinical Laboratory, Women and Children's Hospital of Chongqing Medical University, Chongqing Health Center for Women and Children, Chongqing, China
| | - ShuaiShuai Zhang
- Department of Clinical Laboratory, Chongqing University Three Gorges Hospital, Chongqing, China
| | - Shu Li
- Department of Clinical Laboratory, Women and Children's Hospital of Chongqing Medical University, Chongqing Health Center for Women and Children, Chongqing, China
| | - Siyue Li
- Department of Clinical Laboratory, Women and Children's Hospital of Chongqing Medical University, Chongqing Health Center for Women and Children, Chongqing, China
| | - Yan Su
- Department of Clinical Laboratory, Women and Children's Hospital of Chongqing Medical University, Chongqing Health Center for Women and Children, Chongqing, China
| | - Lei Zhang
- Department of Clinical Laboratory, Women and Children's Hospital of Chongqing Medical University, Chongqing Health Center for Women and Children, Chongqing, China
| | - Qian Li
- Department of Clinical Laboratory, Women and Children's Hospital of Chongqing Medical University, Chongqing Health Center for Women and Children, Chongqing, China
| | - Hua Zou
- Department of Clinical Laboratory, Women and Children's Hospital of Chongqing Medical University, Chongqing Health Center for Women and Children, Chongqing, China
| | - Xinyuan Zhang
- Department of Clinical Laboratory, Women and Children's Hospital of Chongqing Medical University, Chongqing Health Center for Women and Children, Chongqing, China
| | - Teng Wang
- Department of Hematology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Shuang Liang
- Department of Pathology, Women and Children's Hospital of Chongqing Medical University, Chongqing Health Center for Women and Children, Chongqing, China
| | - Jun Yang
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, Chongqing Health Center for Women and Children, Chongqing, China
| | - Chunli Li
- Department of Clinical Laboratory, Women and Children's Hospital of Chongqing Medical University, Chongqing Health Center for Women and Children, Chongqing, China
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3
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Gáspár Z, Szabó BG, Andrikovics H, Ceglédi A, Rajmon M, Ábrahám A, Várnai Z, Kiss-Dala N, Szlávik J, Sinkó J, Vályi-Nagy I, Lakatos B. Secondary infections and long-term outcomes among hospitalized elderly and non-elderly patients with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and treated with baricitinib: a comparative study from the national centre of Hungary. GeroScience 2024; 46:2863-2877. [PMID: 38367195 PMCID: PMC11009165 DOI: 10.1007/s11357-024-01099-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 02/03/2024] [Indexed: 02/19/2024] Open
Abstract
Baricitinib is considered a first-line treatment for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-infected adult patients with an associated cytokine storm syndrome (CSS). Our objective was to compare rates of secondary infections and long-term outcomes of elderly and non-elderly patients who received baricitinib for COVID-19. We conducted a single-centre observational study between November 2020 and September 2023, focusing on hospitalized adult SARS-CoV-2 patients with CSS, categorized as elderly (≥ 65 years) and non-elderly (< 65 years). Enrolment, severity stratification, and diagnosis of infectious complications followed predefined criteria. Outcomes of all-cause mortality and rates of non-severe and severe secondary infections were assessed at 1-year post-treatment initiation. Kaplan-Meier analysis was performed for survival analysis. In total, 490 patients were enrolled (median age 65 ± 23 (21-100) years (years, median ± IQR, min-max); 49.18% elderly; 59.59% male). Elderly patients were admitted to the hospital significantly earlier (7 ± 5 days vs. 8 ± 4 days; p = 0.02), experienced a higher occurrence of severe COVID-19 (121/241, 50.21% vs. 98/249, 39.36%; p = 0.02), and required the use of non-invasive ventilation at baseline (167/225, 74.22% vs. 153/236, 64.83%; p = 0.03). At 1 year, all-cause mortality was significantly higher in the elderly subgroup (111/241, 46.06% vs. 29/249, 11.65%; p < 0.01). At 90 days and 1 year, rates of any severe secondary infection were also more prevalent among the elderly (56/241, 23.24% vs. 37/249 14.86%; p = 0.02 and 58/241, 24.07% vs. 39/249, 15.66%; p = 0.02). In conclusion, elderly SARS-CoV-2-infected patients experience a more severe clinical course, higher secondary infection rates, and increased risk for long-term mortality, regardless of immunomodulatory therapy.
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Affiliation(s)
- Zsófia Gáspár
- National Institute of Haematology and Infectious Diseases, Central Hospital of Southern Pest, Albert Flórián Street 5-7., 1097, Budapest, Hungary
- School of PhD Studies, Semmelweis University, Üllői Street 26., 1085, Budapest, Hungary
| | - Bálint Gergely Szabó
- National Institute of Haematology and Infectious Diseases, Central Hospital of Southern Pest, Albert Flórián Street 5-7., 1097, Budapest, Hungary.
- School of PhD Studies, Semmelweis University, Üllői Street 26., 1085, Budapest, Hungary.
- Departmental Group of Infectious Diseases, Department of Internal Medicine and Haematology, Semmelweis University, Üllői Street 26., 1085, Budapest, Hungary.
| | - Hajnalka Andrikovics
- School of PhD Studies, Semmelweis University, Üllői Street 26., 1085, Budapest, Hungary
- Laboratory of Molecular Genetics, National Institute of Haematology and Infectious Diseases, Central Hospital of Southern Pest, Albert Flórián Street 5-7., 1097, Budapest, Hungary
- Department of Transfusion Medicine, Semmelweis University, Üllői Street 26., 1085, Budapest, Hungary
| | - Andrea Ceglédi
- National Institute of Haematology and Infectious Diseases, Central Hospital of Southern Pest, Albert Flórián Street 5-7., 1097, Budapest, Hungary
| | - Martin Rajmon
- Faculty of Medicine, Semmelweis University, Üllői Street 26., 1085, Budapest, Hungary
| | - Anita Ábrahám
- National Institute of Haematology and Infectious Diseases, Central Hospital of Southern Pest, Albert Flórián Street 5-7., 1097, Budapest, Hungary
| | - Zsuzsanna Várnai
- National Institute of Haematology and Infectious Diseases, Central Hospital of Southern Pest, Albert Flórián Street 5-7., 1097, Budapest, Hungary
| | - Noémi Kiss-Dala
- National Institute of Haematology and Infectious Diseases, Central Hospital of Southern Pest, Albert Flórián Street 5-7., 1097, Budapest, Hungary
- School of PhD Studies, Semmelweis University, Üllői Street 26., 1085, Budapest, Hungary
| | - János Szlávik
- National Institute of Haematology and Infectious Diseases, Central Hospital of Southern Pest, Albert Flórián Street 5-7., 1097, Budapest, Hungary
| | - János Sinkó
- National Institute of Haematology and Infectious Diseases, Central Hospital of Southern Pest, Albert Flórián Street 5-7., 1097, Budapest, Hungary
- Departmental Group of Infectious Diseases, Department of Internal Medicine and Haematology, Semmelweis University, Üllői Street 26., 1085, Budapest, Hungary
| | - István Vályi-Nagy
- National Institute of Haematology and Infectious Diseases, Central Hospital of Southern Pest, Albert Flórián Street 5-7., 1097, Budapest, Hungary
| | - Botond Lakatos
- National Institute of Haematology and Infectious Diseases, Central Hospital of Southern Pest, Albert Flórián Street 5-7., 1097, Budapest, Hungary
- School of PhD Studies, Semmelweis University, Üllői Street 26., 1085, Budapest, Hungary
- Departmental Group of Infectious Diseases, Department of Internal Medicine and Haematology, Semmelweis University, Üllői Street 26., 1085, Budapest, Hungary
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4
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Franz M, Regoes RR, Rolff J. How infection-triggered pathobionts influence virulence evolution. Philos Trans R Soc Lond B Biol Sci 2024; 379:20230067. [PMID: 38497269 PMCID: PMC10945393 DOI: 10.1098/rstb.2023.0067] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 10/28/2023] [Indexed: 03/19/2024] Open
Abstract
Host-pathogen interactions can be influenced by the host microbiota, as the microbiota can facilitate or prevent pathogen infections. In addition, members of the microbiota can become virulent. Such pathobionts can cause co-infections when a pathogen infection alters the host immune system and triggers dysbiosis. Here we performed a theoretical investigation of how pathobiont co-infections affect the evolution of pathogen virulence. We explored the possibility that the likelihood of pathobiont co-infection depends on the evolving virulence of the pathogen. We found that, in contrast to the expectation from classical theory, increased virulence is not always selected for. For an increasing likelihood of co-infection with increasing pathogen virulence, we found scenario-specific selection for either increased or decreased virulence. Evolutionary changes, however, in pathogen virulence do not always translate into similar changes in combined virulence of the pathogen and the pathobiont. Only in one of the scenarios where pathobiont co-infection is triggered above a specific virulence level we found a reduction in combined virulence. This was not the case when the probability of pathobiont co-infection linearly increased with pathogen virulence. Taken together, our study draws attention to the possibility that host-microbiota interactions can be both the driver and the target of pathogen evolution. This article is part of the theme issue 'Sculpting the microbiome: how host factors determine and respond to microbial colonization'.
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Affiliation(s)
- Mathias Franz
- Institute of Biology, Freie Universität Berlin, Berlin 14195, Germany
| | - Roland R. Regoes
- Institute of Integrative Biology, ETH Zurich, Zurich 8092, Switzerland
| | - Jens Rolff
- Institute of Biology, Freie Universität Berlin, Berlin 14195, Germany
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5
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Cruz-Saavedra L, Ospina C, Patiño LH, Villar JC, Sáenz Pérez LD, Cantillo-Barraza O, Jaimes-Dueñez J, Ballesteros N, Cáceres T, Vallejo G, Ramírez JD. Enhancing Trypanosomatid Identification and Genotyping with Oxford Nanopore Sequencing: Development and Validation of an 18S rRNA Amplicon-Based Method. J Mol Diagn 2024; 26:323-336. [PMID: 38360211 DOI: 10.1016/j.jmoldx.2024.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/22/2023] [Accepted: 01/19/2024] [Indexed: 02/17/2024] Open
Abstract
Trypanosomatids, including Trypanosoma and Leishmania species, present significant medical and veterinary challenges, causing substantial economic losses, health complications, and even fatalities. Diagnosing and genotyping these species and their genotypes is often complex, involving multiple steps. This study aimed to develop an amplicon-based sequencing (ABS) method using Oxford Nanopore long-read sequencing to enhance Trypanosomatid detection and genotyping. The 18S rDNA gene was targeted for its inter-species conservation. The Trypanosomatid-ABS method effectively distinguished between 11 Trypanosoma species (including Trypanosoma evansi, Trypanosoma theileri, Trypanosoma vivax, and Trypanosoma rangeli) and 6 Trypanosoma cruzi discrete typing units (TcI to TcVI and TcBat), showing strong concordance with conventional methods (κ index of 0.729, P < 0.001). It detected co-infections between Trypanosomatid genera and T. cruzi, with a limit of detection of one parasite per mL. The method was successfully applied to human, animal, and triatomine samples. Notably, TcI predominated in chronic Chagas samples, whereas TcII and TcIV were found in the acute stage. Triatomine vectors exhibited diverse Trypanosomatid infections, with Triatoma dimidiata mainly infected with TcI and occasional TcBat co-infections, and Rhodnius prolixus showing TcI and TcII infections, along with T. rangeli co-infections and mixed TcII infections. Animals were infected with T. vivax, T. theileri, and T. evansi. The ABS method's high resolution, sensitivity, and accuracy make it a valuable tool for understanding Trypanosomatid dynamics, enhancing disease control strategies, and enabling targeted interventions.
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Affiliation(s)
- Lissa Cruz-Saavedra
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Carlos Ospina
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Luz H Patiño
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Juan C Villar
- Fundación Cardioinfantil-Instituto de Cardiología, Bogotá, Colombia
| | | | | | - Jeiczon Jaimes-Dueñez
- Research Group in Animal Sciences-GRICA, Faculty of Veterinary Medicine and Zootechnics, Universidad Cooperativa de Colombia (UCC), Bucaramanga, Colombia
| | - Nathalia Ballesteros
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Tatiana Cáceres
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Gustavo Vallejo
- Tropical Parasitology Research Laboratory, Faculty of Sciences, Universidad del Tolima, Ibagué, Colombia
| | - Juan D Ramírez
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia; Molecular Microbiology Laboratory, Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York.
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6
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Gish RG, Jacobson IM, Lim JK, Waters-Banker C, Kaushik A, Kim C, Cyhaniuk A, Wong RJ. Prevalence and characteristics of hepatitis delta virus infection in patients with hepatitis B in the United States: An analysis of the All-Payer Claims Database. Hepatology 2024; 79:1117-1128. [PMID: 37976395 PMCID: PMC11020024 DOI: 10.1097/hep.0000000000000687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 10/16/2023] [Indexed: 11/19/2023]
Abstract
BACKGROUND AND AIMS HDV leads to the most severe form of viral hepatitis; however, the prevalence of HDV is not well understood. Using real-world data from the All-Payer Claims Database, this study estimates the prevalence of HBV/HDV infection among the chronic HBV population and describes patient/clinical characteristics for adults with HBV/HDV infection in the United States. APPROACH AND RESULTS Adults (≥18 years) with ≥1 inpatient claim or ≥2 outpatient claims for HDV infection or HBV in the All-Payer Claims Database from January 1, 2014, to December 31, 2020, were identified. HDV prevalence was calculated as the proportion of patients with HBV/HDV infection among total patients with HBV infection. Patient characteristics, socioeconomic status, advanced liver complications (eg, cirrhosis, HCC), and comorbidities were assessed. A total of 6719 patients were diagnosed with HBV/HDV among 144,975 with HBV and 12 months of continuous data, for a prevalence of 4.6%. At diagnosis, 31.7% of patients with HBV/HDV had advanced liver complications, including compensated cirrhosis (16.3%) and decompensated cirrhosis (10.4%). Diabetes (50.5%), hypertension (49.8%), and HIV infection (30.9%) were the top 3 comorbidities. CONCLUSIONS In a large database capturing approximately 80% of the US-insured population, HBV/HDV infection prevalence was 4.6% among adults infected with HBV. Patients infected with HDV had high rates of baseline liver complications and other comorbidities at the time of diagnosis, suggesting potentially delayed diagnosis and/or treatment. Earlier identification of HBV/HDV infection among the population with HBV may provide opportunities to improve linkage to care and treatment, thereby reducing the risk of liver-related morbidity and mortality.
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Affiliation(s)
- Robert G. Gish
- The University of Nevada, Reno School of Medicine, Kirk Kerkorian School of Medicine at the University of Nevada Las Vegas, Las Vegas, Nevada, USA
- UC San Diego Skaggs School of Pharmacy and Pharmaceutical Sciences, Hepatitis B Foundation, La Jolla, California, USA
- Hepatitis B Foundation, Doylestown, Pennsylvania, USA
- Loma Linda University, San Bernardino County, California, USA
| | | | - Joseph K. Lim
- Section of Digestive Diseases and Yale Liver Center, Yale School of Medicine, New Haven, Connecticut, USA
| | | | | | - Chong Kim
- Gilead Sciences Inc., Foster City, California, USA
| | | | - Robert J. Wong
- Division of Gastroenterology and Hepatology, Department of Medicine, Stanford University School of Medicine and Gastroenterology Section, Veterans Affairs Palo Alto Healthcare System, Palo Alto, California, USA
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7
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Shenoy A, Fontana RJ. HDV screening in chronic HBV: An unmet need of growing importance. Hepatology 2024; 79:979-982. [PMID: 38088906 DOI: 10.1097/hep.0000000000000722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 12/05/2023] [Indexed: 01/25/2024]
Affiliation(s)
- Abhishek Shenoy
- Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, Michigan, USA
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8
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Keegan SP, Pedersen AB, Fenton A. The impact of within-host coinfection interactions on between-host parasite transmission dynamics varies with spatial scale. Proc Biol Sci 2024; 291:20240103. [PMID: 38628126 PMCID: PMC11021925 DOI: 10.1098/rspb.2024.0103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 03/18/2024] [Indexed: 04/19/2024] Open
Abstract
Within-host interactions among coinfecting parasites can have major consequences for individual infection risk and disease severity. However, the impact of these within-host interactions on between-host parasite transmission, and the spatial scales over which they occur, remain unknown. We developed and apply a novel spatially explicit analysis to parasite infection data from a wild wood mouse (Apodemus sylvaticus) population. We previously demonstrated a strong within-host negative interaction between two wood mouse gastrointestinal parasites, the nematode Heligmosomoides polygyrus and the coccidian Eimeria hungaryensis, using drug-treatment experiments. Here, we show this negative within-host interaction can significantly alter the between-host transmission dynamics of E. hungaryensis, but only within spatially restricted neighbourhoods around each host. However, for the closely related species E. apionodes, which experiments show does not interact strongly with H. polygyrus, we did not find any effect on transmission over any spatial scale. Our results demonstrate that the effects of within-host coinfection interactions can ripple out beyond each host to alter the transmission dynamics of the parasites, but only over local scales that likely reflect the spatial dimension of transmission. Hence there may be knock-on consequences of drug treatments impacting the transmission of non-target parasites, altering infection risks even for non-treated individuals in the wider neighbourhood.
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Affiliation(s)
- Shaun P. Keegan
- Department of Evolution, Ecology and Behaviour, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L69 7ZB, UK
| | - Amy B. Pedersen
- Institute of Ecology and Evolution, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3FL, UK
| | - Andy Fenton
- Department of Evolution, Ecology and Behaviour, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L69 7ZB, UK
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9
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Sun C, Zhou C, Wang L, Wei S, Shi M, Li J, Lin L, Liu X. Clinical application of metagenomic next-generation sequencing for the diagnosis of suspected infection in adults: A cross-sectional study. Medicine (Baltimore) 2024; 103:e37845. [PMID: 38640284 PMCID: PMC11029930 DOI: 10.1097/md.0000000000037845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 03/15/2024] [Accepted: 03/19/2024] [Indexed: 04/21/2024] Open
Abstract
Metagenomic next-generation sequencing (mNGS) has become an available method for pathogen detection. The clinical application of mNGS requires further evaluation. We conducted a cross-sectional study of 104 patients with suspected infection between May 2019 and May 2021. The risk factors associated with infection were analyzed using univariate logistic analysis. The diagnostic performance of pathogens was compared between mNGS and conventional microbiological tests. About 104 patients were assigned into 3 groups: infected group (n = 69), noninfected group (n = 20), and unknown group (n = 15). With the composite reference standard (combined results of all microbiological tests, radiological testing results, and a summary of the hospital stay of the patient) as the gold standard, the sensitivity, specificity, positive predictive value, negative predictive value of mNGS was 84.9%, 50.0%, 88.6%, and 42.1%, respectively. Compared with conventional microbiological tests, mNGS could detect more pathogens and had obvious advantages in Mycobacterium tuberculosis, Aspergillus, and virus detection. Moreover, mNGS had distinct benefits in detecting mixed infections. Bacteria-fungi-virus mixed infections were the most common in patients with severe pneumonia. mNGS had a higher sensitivity than conventional microbiological tests, especially for M. tuberculosis, Aspergillus, viruses, and mixed infections. We suggest that mNGS should be used more frequently in the early diagnosis of pathogens in critically ill patients in the future.
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Affiliation(s)
- Chunping Sun
- Department of Geriatrics, Peking University First Hospital, Peking University, Beijing, China
- Department of Critical Care Medicine, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Peking University Cancer Hospital and Institute, Beijing, China
| | - Chaoe Zhou
- Department of Geriatrics, Peking University First Hospital, Peking University, Beijing, China
| | - Lina Wang
- Department of Geriatrics, Peking University First Hospital, Peking University, Beijing, China
| | - Shanchen Wei
- Department of Geriatrics, Peking University First Hospital, Peking University, Beijing, China
| | - Mingwei Shi
- Department of Geriatrics, Peking University First Hospital, Peking University, Beijing, China
| | - Jun Li
- Department of Geriatrics, Peking University First Hospital, Peking University, Beijing, China
| | - Lianjun Lin
- Department of Geriatrics, Peking University First Hospital, Peking University, Beijing, China
| | - Xinmin Liu
- Department of Geriatrics, Peking University First Hospital, Peking University, Beijing, China
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10
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Lin L, Fang J, Li J, Tang Y, Xin T, Ouyang N, Cai W, Xie L, Lu S, Zhang J. Metagenomic Next-Generation Sequencing Contributes to the Early Diagnosis of Mixed Infections in Central Nervous System. Mycopathologia 2024; 189:34. [PMID: 38637353 DOI: 10.1007/s11046-024-00837-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 02/13/2024] [Indexed: 04/20/2024]
Abstract
Central nervous system (CNS) infections represent a challenge due to the complexities associated with their diagnosis and treatment, resulting in a high incidence rate and mortality. Here, we presented a case of CNS mixed infection involving Candida and human cytomegalovirus (HCMV), successfully diagnosed through macrogenomic next-generation sequencing (mNGS) in China. A comprehensive review and discussion of previously reported cases were also provided. Our study emphasizes the critical role of early pathogen identification facilitated by mNGS, underscoring its significance. Notably, the integration of mNGS with traditional methods significantly enhances the diagnostic accuracy of CNS infections. This integrated approach has the potential to provide valuable insights for clinical practice, facilitating early diagnosis, allowing for treatment adjustments, and ultimately, improving the prognosis for patients with CNS infections.
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Affiliation(s)
- Li Lin
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Department of Dermatology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Junyue Fang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Cellular and Molecular Diagnostics Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Jiahao Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Department of Dermatology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Ying Tang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Department of Dermatology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Tengteng Xin
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Department of Dermatology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Nengtai Ouyang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Cellular and Molecular Diagnostics Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Wenying Cai
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Department of Dermatology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Lisi Xie
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.
| | - Sha Lu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.
- Department of Dermatology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.
| | - Junmin Zhang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.
- Department of Dermatology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.
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11
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Gouda MA, Saied SA, Edrees A, Mostafa RG, Elfert A, Seleem AA, Shams A, Afify S. Effect of concurrent infection of Helicobacter pylori with Toxoplasma gondii infection on gastric pathology. BMC Infect Dis 2024; 24:408. [PMID: 38627630 PMCID: PMC11020820 DOI: 10.1186/s12879-024-09270-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 03/28/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND Toxoplasma gondii (T. gondii) and Helicobacter pylori (H. pylori) are among the most prevalent foodborne parasitic and bacterial infections worldwide. However, the concurrent impact of coinfection on gastric pathology has yet to be studied in depth. The effect of coinfection generally either adds a synergetic or antagonistic impact; we aimed in the current work to assess the impact of T. gondii coinfection on the progression of H. pylori-associated gastric pathology and reporting H. pylori virulent strains. The study was conducted on 82 patients complaining of persistent gastrointestinal symptoms with failed treatment response and prone to endoscopy. They were subjected to stool examination to detect H. pylori antigen, serological screening for latent toxoplasmosis, endoscopy, histopathological examination, and molecular detection of H. pylori virulence strains in gastric biopsies. Out of the 82 patients, 62 patients were positive for H. pylori antigen in stool and 55 patients confirmed positivity by histopathology; out of them, 37 patients had isolated Vac As1 variants, 11 patients had combined Vac As1 and Cag A variants, and 7 patients had combined Vac As1, Cag A and VacAs2 variants. Patients with the combined two or three variances showed significantly deteriorated histopathological features than patients with a single Vac As1 variant (P < 0.05). Latent toxoplasmosis was positive among 35/82 patients. Combined H. pylori and Toxoplasma gondii infection had significantly marked inflammation than patients with isolated infection (P < 0.05). CONCLUSION Screening for toxoplasmosis among H. pylori-infected patients is recommended as it is considered a potential risk factor for gastric inflammation severity. H. pylori gastric inflammation may be heightened by Toxoplasma coinfection.
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Affiliation(s)
- Marwa A Gouda
- Clinical and Molecular Parasitology Department, National Liver Institute, Menoufia University, Shibin Elkom, Menoufia, Egypt
| | - Sara A Saied
- Clinical Pathology Department, National Liver Institute, Menoufia University, Shibin Elkom, Menoufia, Egypt.
| | - Ahmed Edrees
- Hepatology and Gastroenterology Department, National Liver Institute, Menoufia University, Shibin Elkom, Menoufia, Egypt
| | - Rasha Galal Mostafa
- Department of Medical Microbiology, Faculty of Medicine, Menoufia University, Shibin Elkom, Menoufia, Egypt
| | - Ashraf Elfert
- Clinical Biochemistry and Molecular Diagnostics department, National Liver Institute, Menoufia University, Shibin Elkom, Menoufia, Egypt
| | - Aya Abdallah Seleem
- Zoonoses department, Faculty of Veterinary medicine, Cairo University, Cairo, Egypt
| | - Asmaa Shams
- Department of Pathology, Faculty of Medicine, Menoufia University, Shibin Elkom, Menoufia, Egypt
| | - Sameh Afify
- Hepatology and Gastroenterology Department, National Liver Institute, Menoufia University, Shibin Elkom, Menoufia, Egypt
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12
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Aguilar G, Lopez G, Sued O, Medina N, Caceres DH, Pereira J, Jordan A, Lezcano V, Vicenti C, Benitez G, Samudio T, Perez F. Implementation of a rapid diagnostic assay package for cryptococcosis, histoplasmosis and tuberculosis in people living with HIV in Paraguay. BMC Infect Dis 2024; 24:406. [PMID: 38627642 PMCID: PMC11020460 DOI: 10.1186/s12879-024-09257-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 03/26/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND Opportunistic infections (OIs) are common causes of mortality among people living with HIV (PLHIV). We determined prevalence and 30-day mortality due to histoplasmosis, cryptococcosis, and TB in PLHIV with advanced HIV disease (AHD). METHODS PLHIV 18 years and older, with a CD4 + T-cell count of less than 350 cells/mm3 newly diagnosed with HIV infection or re-engaged in care after being without ART for more than 90 days (Group A). The second group included symptomatic PLHIV regardless of ART status or CD4 + T-cell count (Group B); all followed for 30 days. Detection of Histoplasma Ag (HisAg) in urine was done by enzyme immunoassay (EIA), Cryptococcus antigen (CrAg) was detected in serum and cerebrospinal fluid (CSF) specimens by lateral flow assay (LFA), and lipoarabinomannan (LAM) detection in urine was by LFA (TB LAM) and in sputum by GeneXpert for diagnosis of Mycobacterium infections. RESULTS From August 2021 to June 2022, 491 PLHIV were enrolled; 482 (98%) had a CD4 + T-cell result, and 381 patients (79%) were classified with AHD according to CD4 + T-cell count (< 200 CD4/mm3). Frequency of an OI was 38% (n = 145/381). Antigen test positivity rate was 16% (72/467) for TB-LAM, 9% (43/464) for HisAg, and 11% (51/484) for CrAg. Twenty-one of 34 (62%) patients receiving CSF CrAg tests were positive, confirming meningitis. Significant differences in 30-day mortality were observed in patients with an OI (16%) vs. no OI (7%) (p = 0.002). Mortality was highest in patients with histoplasmosis (25%), co-infection (22%), cryptococcosis (18% overall; 19% for cryptococcal meningitis), and TB (10%). CONCLUSIONS TB and fungal OIs, including co-infection, were common in PLHIV in Paraguay and had high associated mortality. Laboratories and health facilities need access to CD4 + T-cell testing and rapid diagnostic assays.
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Affiliation(s)
- Gloria Aguilar
- National HIV Program, Asunción, Paraguay
- Facultad de Ciencias de la Salud, Universidad Sudamericana, Amambay, Paraguay
| | | | - Omar Sued
- Communicable Diseases Prevention, Control, and Elimination and Environmental Determinants of Health Department, Pan American Health Organization, 525 23rd St. NW, 20037, Washington, DC, USA
| | - Narda Medina
- Mycotic Diseases Branch, Division of Foodborne, Waterborne, and Environmental Diseases (DFWED), ASRT, Inc., Centers for Disease Control and Prevention, 30333, Atlanta, GA, USA
| | - Diego H Caceres
- IMMY, Inc., 73069, Norman, OK, USA
- Studies in Translational Microbiology and Emerging Diseases (MICROS) Research Group, School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Jose Pereira
- Centro de Especialidades Dermatológicas, Ministerio de Salud Pública y Bienestar Social, San Lorenzo, Paraguay
| | - Alexander Jordan
- Mycotic Diseases Branch-Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | | | | | | | | | - Freddy Perez
- Communicable Diseases Prevention, Control, and Elimination and Environmental Determinants of Health Department, Pan American Health Organization, 525 23rd St. NW, 20037, Washington, DC, USA.
- Federal University of Health Sciences of Porto Alegre, Porto Alegre, Brazil.
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Belete MT, Kim SE, Gudeta WF, Igori D, Kwon JA, Lee SH, Moon JS. Deciphering the virome of Chunkung (Cnidium officinale) showing dwarfism-like symptoms via a high-throughput sequencing analysis. Virol J 2024; 21:86. [PMID: 38622686 PMCID: PMC11017662 DOI: 10.1186/s12985-024-02361-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 04/08/2024] [Indexed: 04/17/2024] Open
Abstract
BACKGROUND Viruses have notable effects on agroecosystems, wherein they can adversely affect plant health and cause problems (e.g., increased biosecurity risks and economic losses). However, our knowledge of their diversity and interactions with specific host plants in ecosystems remains limited. To enhance our understanding of the roles that viruses play in agroecosystems, comprehensive analyses of the viromes of a wide range of plants are essential. High-throughput sequencing (HTS) techniques are useful for conducting impartial and unbiased investigations of plant viromes, ultimately forming a basis for generating further biological and ecological insights. This study was conducted to thoroughly characterize the viral community dynamics in individual plants. RESULTS An HTS-based virome analysis in conjunction with proximity sampling and a tripartite network analysis were performed to investigate the viral diversity in chunkung (Cnidium officinale) plants. We identified 61 distinct chunkung plant-associated viruses (27 DNA and 34 RNA viruses) from 21 known genera and 6 unclassified genera in 14 known viral families. Notably, 12 persistent viruses (7 DNA and 5 RNA viruses) were exclusive to dwarfed chunkung plants. The detection of viruses from the families Partitiviridae, Picobirnaviridae, and Spinareoviridae only in the dwarfed plants suggested that they may contribute to the observed dwarfism. The co-infection of chunkung by multiple viruses is indicative of a dynamic and interactive viral ecosystem with significant sequence variability and evidence of recombination. CONCLUSIONS We revealed the viral community involved in chunkung. Our findings suggest that chunkung serves as a significant reservoir for a variety of plant viruses. Moreover, the co-infection rate of individual plants was unexpectedly high. Future research will need to elucidate the mechanisms enabling several dozen viruses to co-exist in chunkung. Nevertheless, the important insights into the chunkung virome generated in this study may be relevant to developing effective plant viral disease management and control strategies.
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Affiliation(s)
- Mesele Tilahun Belete
- Biosystem and Bioengineering Program, University of Science and Technology (UST), Daejeon, 34141, Republic of Korea
- Plant System Engineering Research Center, Korean Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
- Amhara Agricultural Research Institute, Plant Biotechnology Research Division, Bahir Dar, Ethiopia
| | - Se Eun Kim
- Plant System Engineering Research Center, Korean Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
| | - Workitu Firmosa Gudeta
- Biosystem and Bioengineering Program, University of Science and Technology (UST), Daejeon, 34141, Republic of Korea
- Plant System Engineering Research Center, Korean Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
| | - Davaajargal Igori
- Plant System Engineering Research Center, Korean Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
- Department of Biology, School of Mathematics and Natural Sciences, Mongolian National University of Education, Ulaanbaatar, Mongolia
| | - Jeong A Kwon
- Biosystem and Bioengineering Program, University of Science and Technology (UST), Daejeon, 34141, Republic of Korea
- Plant System Engineering Research Center, Korean Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
| | - Su-Heon Lee
- School of Applied Bioscience, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, 98411, Republic of Korea.
| | - Jae Sun Moon
- Biosystem and Bioengineering Program, University of Science and Technology (UST), Daejeon, 34141, Republic of Korea.
- Plant System Engineering Research Center, Korean Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea.
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Luong QXT, Hoang PT, Lee Y, Ayun RQ, Na K, Park S, Lin C, Ho PT, Lee TK, Lee S. An RNA-hydrolyzing recombinant minibody prevents both influenza A virus and coronavirus in co-infection models. Sci Rep 2024; 14:8472. [PMID: 38605110 PMCID: PMC11009316 DOI: 10.1038/s41598-024-52810-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 01/23/2024] [Indexed: 04/13/2024] Open
Abstract
With the lifting of COVID-19 non-pharmaceutical interventions, the resurgence of common viral respiratory infections was recorded in several countries worldwide. It facilitates viral co-infection, further burdens the already over-stretched healthcare systems. Racing to find co-infection-associated efficacy therapeutic agents need to be rapidly established. However, it has encountered numerous challenges that necessitate careful investigation. Here, we introduce a potential recombinant minibody-associated treatment, 3D8 single chain variable fragment (scFv), which has been developed as a broad-spectrum antiviral drug that acts via its nucleic acid catalytic and cell penetration abilities. In this research, we demonstrated that 3D8 scFv exerted antiviral activity simultaneously against both influenza A viruses (IAVs) and coronaviruses in three established co-infection models comprising two types of coronaviruses [beta coronavirus-human coronavirus OC43 (hCoV-OC43) and alpha coronavirus-porcine epidemic diarrhea virus (PEDV)] in Vero E6 cells, two IAVs [A/Puerto Rico/8/1934 H1N1 (H1N1/PR8) and A/X-31 (H3N2/X-31)] in MDCK cells, and a combination of coronavirus and IAV (hCoV-OC43 and adapted-H1N1) in Vero E6 cells by a statistically significant reduction in viral gene expression, proteins level, and approximately around 85%, 65%, and 80% of the progeny of 'hCoV-OC43-PEDV', 'H1N1/PR8-H3N2/X-31', and 'hCoV-OC43-adapted-H1N1', respectively, were decimated in the presence of 3D8 scFv. Taken together, we propose that 3D8 scFv is a promising broad-spectrum drug for treatment against RNA viruses in co-infection.
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Affiliation(s)
- Quynh Xuan Thi Luong
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, 16419, Korea
| | - Phuong Thi Hoang
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, 16419, Korea
| | - Yongjun Lee
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, 16419, Korea
| | | | - Kyungho Na
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, 16419, Korea
| | - Seonhyeon Park
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, 16419, Korea
| | - Chengmin Lin
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, 16419, Korea
| | - Phuong Thi Ho
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, 16419, Korea
| | - Taek-Kyun Lee
- Ecological Risk Research Department, Korea Institute of Ocean Science & Technology, Geoje, 53201, Korea.
| | - Sukchan Lee
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, 16419, Korea.
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15
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Sha H, Lu J, Chen J, Xiong J. Rationally designed probiotics prevent shrimp white feces syndrome via the probiotics-gut microbiome-immunity axis. NPJ Biofilms Microbiomes 2024; 10:40. [PMID: 38605016 PMCID: PMC11009345 DOI: 10.1038/s41522-024-00509-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 03/25/2024] [Indexed: 04/13/2024] Open
Abstract
Increasing evidence infers that some complex diseases are attributed to co-infection with multiple pathogens, such as shrimp white feces syndrome (WFS); however, there is a lack of experimental evidence to validate such causal link. This deficiency further impedes rational design of probiotics to elicit desired benefits to shrimp WFS resistance. Herein, we validated the causal roles of Vibrio fluvialis, V. coralliilyticus and V. tubiashii (in a ratio of 7:2:1) in shrimp WFS etiology, which fully satisfied Koch's postulates. Correspondingly, we precisely designed four antagonistic strains: Ruegeria lacuscaerulensis, Nioella nitratireducens, Bacillus subtilis and Streptomyces euryhalinus in a ratio of 4:3:2:1, which efficiently guarded against WFS. Dietary supplementation of the probiotics stimulated beneficial gut populations, streptomycin, short chain fatty acids, taurine metabolism potentials, network stability, tight junction, and host selection, while reducing turnover rate and average variation degree of gut microbiota, thereby facilitating ecological and mechanical barriers against pathogens. Additionally, shrimp immune pathways, such as Fcγ R-mediated phagocytosis, Toll-like receptor and RIG-I-like receptor signaling pathways conferring immune barrier, were activated by probiotics supplementation. Collectively, we establish an updated framework for precisely validating co-infection with multiple pathogens and rationally designing antagonistic probiotics. Furthermore, our findings uncover the underlying beneficial mechanisms of designed probiotics from the probiotics-gut microbiome-host immunity axis.
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Affiliation(s)
- Haonan Sha
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Insititute of Plant Virology, Ningbo University, Ningbo, 315211, China
- School of Marine Sciences, Ningbo University, Ningbo, 315211, China
| | - Jiaqi Lu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Insititute of Plant Virology, Ningbo University, Ningbo, 315211, China
- School of Marine Sciences, Ningbo University, Ningbo, 315211, China
| | - Jiong Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Insititute of Plant Virology, Ningbo University, Ningbo, 315211, China
- School of Marine Sciences, Ningbo University, Ningbo, 315211, China
| | - Jinbo Xiong
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Insititute of Plant Virology, Ningbo University, Ningbo, 315211, China.
- School of Marine Sciences, Ningbo University, Ningbo, 315211, China.
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16
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Darge T, Babusha A, Chilo D, Dukessa A, Teferi S. Predictors of severe hepatotoxicity among retroviral infected adults on HAART regimen in Ilubabor Zone, Southwest Ethiopia. Sci Rep 2024; 14:8473. [PMID: 38605149 PMCID: PMC11009247 DOI: 10.1038/s41598-024-57900-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 03/22/2024] [Indexed: 04/13/2024] Open
Abstract
Nearly half of the deaths among hospitalized human immuno deficiency virus-infected patients in the highly active antiretroviral therapy era have been attributed to liver disease. This may range from an asymptomatic mild increase of liver enzymes to cirrhosis and liver failure. Different works of literature elucidated both retroviral infection and the adverse effects of highly active antiretroviral therapy as a cause of hepatotoxicity. Individual adaptations to medications and environmental exposures, shaped by cultural norms and genetic predispositions, could potentially modulate the risk and progression of liver disease in this population. Therefore, this study aims to assess the predictors of severe hepatotoxicity in retroviral-infected adults receiving highly active antiretroviral therapy regimens within the Ilubabor Zone, Southwest Ethiopia. A facility-based cross-sectional study was conducted among adult retroviral-infected patients in five selected anti-retro virus therapy clinics from May1 to July 30/2022. A systematic sampling technique was used to select 457 study participants and Binary logistic regression statistical data analysis was used, P value < 0.05 was considered statistically significant. The prevalence of severe hepatotoxicity was 21.44% in the study population. CD+4 count < 200 cells/mm3 (AOR = 2.19, 95% CI 1.04-5.22, P = 0.01), human immunodeficiency virus co-infection with tuberculosis (AOR = 2.82, 95% CI 1.01-8.29, P = 0.03) and human immuno deficiency virus co-infection with hepatitis-B/hepatitis C virus (AOR = 5.02, 95% CI 1.82-16.41) were predictors of severe hepatotoxicity. The magnitude of severe hepatotoxicity was high among adult retroviral-infected patients on highly active anti-retroviral drug regimens. Co-infection of human immuno deficiency virus with hepatitis B virus or hepatitis C virus, tuberculosis and CD4+T-cell count below 200 cells/mm3 were predictors of severe hepatotoxicity. Therefore, HIV patients on highly active antiretroviral therapy require close attention and regular monitoring of their liver function.
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Affiliation(s)
- Tefera Darge
- Department of Biomedical Sciences, College of Health Sciences, Mettu University, Mettu, Ethiopia.
| | - Alemayehu Babusha
- Department of Biomedical Sciences, College of Health Sciences, Mettu University, Mettu, Ethiopia
| | - Dessalegn Chilo
- Department of Pharmacy, College of Health Sciences, Mettu University, Mettu, Ethiopia
| | - Abebe Dukessa
- Department of Biomedical Sciences, Institution of Health, Jimma University, Jimma, Ethiopia
| | - Sisay Teferi
- Department of Medical Laboratory Science, College of Health Sciences, Mettu University, Mettu, Ethiopia
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17
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Ganjo AR, Balaky STJ, Mawlood AH, Smail SB, Shabila NP. Characterization of genes related to the efflux pump and porin in multidrug-resistant Escherichia coli strains isolated from patients with COVID-19 after secondary infection. BMC Microbiol 2024; 24:122. [PMID: 38600509 PMCID: PMC11005145 DOI: 10.1186/s12866-024-03283-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 03/28/2024] [Indexed: 04/12/2024] Open
Abstract
BACKGROUND Escherichia coli (E. coli) is a multidrug resistant opportunistic pathogen that can cause secondary bacterial infections in patients with COVID-19. This study aimed to determine the antimicrobial resistance profile of E. coli as a secondary bacterial infection in patients with COVID-19 and to assess the prevalence and characterization of genes related to efflux pumps and porin. METHODS A total of 50 nonduplicate E. coli isolates were collected as secondary bacterial infections in COVID-19 patients. The isolates were cultured from sputum samples. Confirmation and antibiotic susceptibility testing were conducted by Vitek 2. PCR was used to assess the prevalence of the efflux pump and porin-related genes in the isolates. The phenotypic and genotypic evolution of antibiotic resistance genes related to the efflux pump was evaluated. RESULTS The E. coli isolates demonstrated high resistance to ampicillin (100%), cefixime (62%), cefepime (62%), amoxicillin-clavulanic acid (60%), cefuroxime (60%), and ceftriaxone (58%). The susceptibility of E. coli to ertapenem was greatest (92%), followed by imipenem (88%), meropenem (86%), tigecycline (80%), and levofloxacin (76%). Regarding efflux pump gene combinations, there was a significant association between the acrA gene and increased resistance to levofloxacin, between the acrB gene and decreased resistance to meropenem and increased resistance to levofloxacin, and between the ompF and ompC genes and increased resistance to gentamicin. CONCLUSIONS The antibiotics ertapenem, imipenem, meropenem, tigecycline, and levofloxacin were effective against E. coli in patients with COVID-19. Genes encoding efflux pumps and porins, such as acrA, acrB, and outer membrane porins, were highly distributed among all the isolates. Efflux pump inhibitors could be alternative antibiotics for restoring tetracycline activity in E. coli isolates.
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Affiliation(s)
- Aryan R Ganjo
- Department of Clinical Analysis, College of Pharmacy, Hawler Medical University, Erbil, Kurdistan Region, Iraq
- Department of Medical Analysis, Faculty of Applied Science, Tishk International University, Erbil, Iraq
| | - Salah Tofik Jalal Balaky
- Department of Medical Analysis, Faculty of Applied Science, Tishk International University, Erbil, Iraq.
- Department of Medical Microbiology, College of Health Sciences, Hawler Medical University, Erbil, Kurdistan Region, Iraq.
| | - Ahang Hasan Mawlood
- Department of Medical Microbiology, College of Health Sciences, Hawler Medical University, Erbil, Kurdistan Region, Iraq
- Department of Medical Laboratory Technique, College of Medical Technology, AL-Kitab University, Kirkuk, Iraq
| | | | - Nazar P Shabila
- College of Health Sciences, Catholic University in Erbil, Erbil, Kurdistan Region, Iraq
- Department of Community Medicine, College of Medicine, Hawler Medical University, Erbil, Iraq
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18
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Zhang X, Sun R, Jia W, Li P, Song C. A new dynamic nomogram for predicting the risk of severe Mycoplasma pneumoniae pneumonia in children. Sci Rep 2024; 14:8260. [PMID: 38589453 PMCID: PMC11002011 DOI: 10.1038/s41598-024-58784-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 04/03/2024] [Indexed: 04/10/2024] Open
Abstract
Mycoplasma pneumoniae pneumonia (MPP) is usually mild and self-limiting, but still about 12% of them will progress to severe Mycoplasma pneumoniae pneumonia (SMPP), which have poor survival rates and often require intensive medical resource utilization. We retrospectively collected clinical data from 526 children with MPP admitted to the Children's Hospital Affiliated to Zhengzhou University from June 2018 to February 2023 and randomly divided the data into a training cohort and a validation cohort at a ratio of 4:1. Univariate and multivariate logistic regressions were used to identify independent risk factors for SMPP. Age, AGR, NLR, CRP, ESR, MPV, coinfection, pleural effusion, primary disease, fever days ≥ 7 and wheeze are independent risk factors for SMPP in children. Then, we built an online dynamic nomogram ( https://ertongyiyuanliexiantu.shinyapps.io/SMPP/ ) based on the 11 independent risk factors. The C-index, ROC curve, DCA curve and calibration curve were used to assess the performance of the nomogram, which all showed that the dynamic nomogram has excellent clinical value. Based on age, AGR, NLR, CRP, ESR, MPV, coinfection, pleural effusion, primary disease, fever days ≥ 7 and wheeze, the first dynamic nomogram for accurately predicting SMPP was successfully established.
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Affiliation(s)
- Xue Zhang
- Henan Province Engineering Research Center of Diagnosis and Treatment of Pediatric Infection and Critical Care, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Ruiyang Sun
- Henan Province Engineering Research Center of Diagnosis and Treatment of Pediatric Infection and Critical Care, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Wanyu Jia
- Henan Province Engineering Research Center of Diagnosis and Treatment of Pediatric Infection and Critical Care, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Peng Li
- Henan Province Engineering Research Center of Diagnosis and Treatment of Pediatric Infection and Critical Care, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Chunlan Song
- Henan Province Engineering Research Center of Diagnosis and Treatment of Pediatric Infection and Critical Care, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, 450052, Henan, China.
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19
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Tang J, Weng R, Fang T, Zhang K, Yan X, Jin X, Xie L, Zhao D. Clinical outcomes of liver transplantation in human immunodeficiency virus/hepatitis B virus coinfected patients in China. BMC Infect Dis 2024; 24:383. [PMID: 38589801 PMCID: PMC11003048 DOI: 10.1186/s12879-024-09284-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 04/03/2024] [Indexed: 04/10/2024] Open
Abstract
BACKGROUND Highly active antiretroviral therapy (HAART) has been able to improve the immune system function and survival of human immunodeficiency virus (HIV) patients. However, Patients coinfected with HIV and hepatitis B virus (HBV) are more likely to develop end-stage liver disease (ESLD) than those infected with HBV alone. Consequently, liver transplantation is often required for these patients. This study evaluates the outcomes of orthotopic liver transplantation (OLT) of HIV-HBV coinfected patients in China. METHODS We conducted a retrospective analysis on all HIV-HBV coinfected patients that underwent OLT from April 1, 2019 to December 31, 2021 and their outcomes were compared to all HBV monoinfected patients undergoing OLT during the same period. Patient outcomes were determined, including cumulative survival, viral load, CD4 T-cell count and postoperative complications. RESULTS The median follow-up of HIV recipients was 36 months after OLT (interquartile range 12-39 months). Almost all patients had stable CD4 T-cell count (> 200 copies/ul), undetectable HBV DNA levels, and undetectable HIV RNA load during follow-up. The 1-, 2-, and 3-year posttransplant survival rates were 85.7% for the HIV group (unchanged from 1 to 3 years) versus 82.2%, 81.2%, and 78.8% for the non-HIV group. Cumulative survival among HIV-HBV coinfected recipients was not significantly different from the HBV monoinfected recipients (log-rank test P = 0.692). The percentage of deaths attributed to infection was comparable between the HIV and non-HIV groups (14.3% vs. 9.32%, P = 0.665). Post OLT, there was no significant difference in acute rejection, cytomegalovirus infection, bacteremia, pulmonary infection, acute kidney injury, de novo tumor and vascular and biliary complications. CONCLUSIONS Liver transplantation in patients with HIV-HBV coinfection yields excellent outcomes in terms of intermediate- or long-term survival rate and low incidence of postoperative complications in China. These findings suggest that OLT is safe and feasible for HIV-HBV coinfected patients with ESLD. TRIAL REGISTRATION Chinese Clinical Trial Registry (ChiCTR2300067631), registered 11 January 2023.
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Affiliation(s)
- Jianxin Tang
- Department of Liver Surgery & Organ Transplantation Center, Shenzhen Third People's Hospital, The Second Affiliated Hospital of Southern University of Science and Technology, National Clinical Research Center for Infectious Disease, Longgang District, Bulan Road 29#, 518000, Shenzhen, China
| | - Ruihui Weng
- Department of Neurology, Shenzhen Third People's Hospital, The Second Affiliated Hospital of Southern, University of Science and Technology, 518000, Shenzhen, China
| | - Taishi Fang
- Department of Liver Surgery & Organ Transplantation Center, Shenzhen Third People's Hospital, The Second Affiliated Hospital of Southern University of Science and Technology, National Clinical Research Center for Infectious Disease, Longgang District, Bulan Road 29#, 518000, Shenzhen, China
| | - Kangjun Zhang
- Department of Liver Surgery & Organ Transplantation Center, Shenzhen Third People's Hospital, The Second Affiliated Hospital of Southern University of Science and Technology, National Clinical Research Center for Infectious Disease, Longgang District, Bulan Road 29#, 518000, Shenzhen, China
| | - Xu Yan
- Department of Liver Surgery & Organ Transplantation Center, Shenzhen Third People's Hospital, The Second Affiliated Hospital of Southern University of Science and Technology, National Clinical Research Center for Infectious Disease, Longgang District, Bulan Road 29#, 518000, Shenzhen, China
| | - Xin Jin
- Department of Liver Surgery & Organ Transplantation Center, Shenzhen Third People's Hospital, The Second Affiliated Hospital of Southern University of Science and Technology, National Clinical Research Center for Infectious Disease, Longgang District, Bulan Road 29#, 518000, Shenzhen, China
| | - Linjie Xie
- Department of Liver Surgery & Organ Transplantation Center, Shenzhen Third People's Hospital, The Second Affiliated Hospital of Southern University of Science and Technology, National Clinical Research Center for Infectious Disease, Longgang District, Bulan Road 29#, 518000, Shenzhen, China
| | - Dong Zhao
- Department of Liver Surgery & Organ Transplantation Center, Shenzhen Third People's Hospital, The Second Affiliated Hospital of Southern University of Science and Technology, National Clinical Research Center for Infectious Disease, Longgang District, Bulan Road 29#, 518000, Shenzhen, China.
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20
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Luo X, Deng J, Luo M, Yu N, Che X. Detection and Characterization of Bacterial and Viral Acute Gastroenteritis among Outpatient Children under 5 Years Old in Guangzhou, China. Am J Trop Med Hyg 2024; 110:809-814. [PMID: 38412529 PMCID: PMC10993840 DOI: 10.4269/ajtmh.23-0725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 12/16/2023] [Indexed: 02/29/2024] Open
Abstract
Acute gastroenteritis (AGE) in children can be attributed to a multitude of bacterial and viral pathogens. The objective of this study was to investigate the epidemiology of bacterial and viral AGE in children and to compare clinical characteristics between single and multiple enteric pathogen infections. A total of 456 stool samples were collected from outpatient children under 5 years old with AGE, which were subsequently analyzed for nine bacteria and three viruses using the Luminex xTAG® Gastrointestinal Pathogen Panel. The presence of at least one pathogen was detected in 260 cases (57.0%), with Salmonella being the predominant agent, followed by norovirus, Campylobacter, and rotavirus. A total of 69 cases (15.1%) exhibited positive results for two or more enteric pathogens. Although certain co-infections demonstrated significant differences in primary clinical features compared with mono-infections, no statistical variance was observed in terms of disease severity. In outpatient children from southern China, Salmonella emerged as the most prevalent causative agent of AGE, succeeded by norovirus and Campylobacter. This study underscores the burden posed by coinfections and highlights the clinical characteristics associated with AGE when accompanied by coinfections among children under 5 years old.
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Affiliation(s)
- Xin Luo
- Department of Laboratory Medicine, Guangdong Women and Children Hospital, Guangzhou, China
| | - Jiankai Deng
- Department of Laboratory Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Mingyong Luo
- Department of Laboratory Medicine, Guangdong Women and Children Hospital, Guangzhou, China
| | - Nan Yu
- Laboratory of Emerging Infectious Diseases and Division of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaoyan Che
- Laboratory of Emerging Infectious Diseases and Division of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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21
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Roy D, Chakraborty N. Editorial: Impact of viral co-infection on cellular or human health and its clinical outcome. Front Cell Infect Microbiol 2024; 14:1399184. [PMID: 38633746 PMCID: PMC11022686 DOI: 10.3389/fcimb.2024.1399184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 03/22/2024] [Indexed: 04/19/2024] Open
Affiliation(s)
| | - Nilanjan Chakraborty
- Virus Research Laboratory, ICMR-National Institute of Cholera and Enteric Diseases (NICED), Kolkata, West Bengal, India
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22
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Diaz-Cánova D, Moens U, Brinkmann A, Nitsche A, Okeke MI. Whole genome sequencing of recombinant viruses obtained from co-infection and superinfection of Vero cells with modified vaccinia virus ankara vectored influenza vaccine and a naturally occurring cowpox virus. Front Immunol 2024; 15:1277447. [PMID: 38633245 PMCID: PMC11021749 DOI: 10.3389/fimmu.2024.1277447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 03/19/2024] [Indexed: 04/19/2024] Open
Abstract
Modified vaccinia virus Ankara (MVA) has been widely tested in clinical trials as recombinant vector vaccine against infectious diseases and cancers in humans and animals. However, one biosafety concern about the use of MVA vectored vaccine is the potential for MVA to recombine with naturally occurring orthopoxviruses in cells and hosts in which it multiplies poorly and, therefore, producing viruses with mosaic genomes with altered genetic and phenotypic properties. We previously conducted co-infection and superinfection experiments with MVA vectored influenza vaccine (MVA-HANP) and a feline Cowpox virus (CPXV-No-F1) in Vero cells (that were semi-permissive to MVA infection) and showed that recombination occurred in both co-infected and superinfected cells. In this study, we selected the putative recombinant viruses and performed genomic characterization of these viruses. Some putative recombinant viruses displayed plaque morphology distinct of that of the parental viruses. Our analysis demonstrated that they had mosaic genomes of different lengths. The recombinant viruses, with a genome more similar to MVA-HANP (>50%), rescued deleted and/or fragmented genes in MVA and gained new host ranges genes. Our analysis also revealed that some MVA-HANP contained a partially deleted transgene expression cassette and one recombinant virus contained part of the transgene expression cassette similar to that incomplete MVA-HANP. The recombination in co-infected and superinfected Vero cells resulted in recombinant viruses with unpredictable biological and genetic properties as well as recovery of delete/fragmented genes in MVA and transfer of the transgene into replication competent CPXV. These results are relevant to hazard characterization and risk assessment of MVA vectored biologicals.
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Affiliation(s)
- Diana Diaz-Cánova
- Molecular Inflammation Research Group, Department of Medical Biology, UiT - The Arctic University of Norway, Tromsø, Norway
| | - Ugo Moens
- Molecular Inflammation Research Group, Department of Medical Biology, UiT - The Arctic University of Norway, Tromsø, Norway
| | - Annika Brinkmann
- WHO Reference Laboratory for SARS-CoV-2 and WHO Collaborating Centre for Emerging Infections and Biological Threats, Robert Koch Institute, Berlin, Germany
| | - Andreas Nitsche
- WHO Reference Laboratory for SARS-CoV-2 and WHO Collaborating Centre for Emerging Infections and Biological Threats, Robert Koch Institute, Berlin, Germany
| | - Malachy Ifeanyi Okeke
- Section of Biomedical Sciences, Department of Natural and Environmental Sciences, School of Arts and Sciences, American University of Nigeria, Yola, Nigeria
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23
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Kleebayoon A, Wiwanitkit V. Comment on "Monkeypox Infection Causing Conjunctival Vesicles and Anterior Uveitis" - A Concern on Possible Co-Infection. Ocul Immunol Inflamm 2024; 32:268. [PMID: 37093646 DOI: 10.1080/09273948.2023.2193261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 03/15/2023] [Indexed: 04/25/2023]
Abstract
This correspondence discusses on the monkeypox infection and conjunjunctival problem with uveitis. The other possible causes of the problme are mentioned.
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Affiliation(s)
| | - Viroj Wiwanitkit
- Department of Biological Science, Joseph Ayo Babalola University, Ikeji-Arakeji, Nigeria
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24
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Loubet P, Fernandes J, de Pouvourville G, Sosnowiez K, Elong A, Guilmet C, Omichessan H, Bureau I, Fagnani F, Emery C, Abou Chakra CN. Respiratory syncytial virus-related hospital stays in adults in France from 2012 to 2021: A national hospital database study. J Clin Virol 2024; 171:105635. [PMID: 38215557 DOI: 10.1016/j.jcv.2023.105635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 12/20/2023] [Accepted: 12/28/2023] [Indexed: 01/14/2024]
Abstract
BACKGROUND Respiratory syncytial virus (RSV) causes lower respiratory tract infections (LRTI) that may lead to hospitalization or death. The present study aimed to assess the burden of RSV infections in hospitalized adults. METHODS RSV-related hospitalizations were identified from the nationwide hospital claims database in France (PMSI) from 2012 to 2021 using ICD-10 codes J12.1, J20.5, J21.0 or B97.4, and outcomes assessment focused on 2016-2020. In-hospital outcomes included length of stay, need for intensive care (ICU) and in-hospital all-cause mortality. Post-discharge outcomes included 30-day readmission for decompensation, 90-day RSV-related readmission, and 30 and 60-day in-hospital mortality. RESULTS A cumulated number of 17 483 RSV-related stays were identified representing a rate of 72.0 cases per million stays. The outcomes assessment included 12,987 patients: 55.8 % were females and the mean age was 74.1 ± 16.4 years, with 57 % ≥ 75 years. Most of patients (78.6 %) had at least one comorbidity, mainly chronic respiratory (56.3 %) and cardiovascular diseases (41.3 %), or diabetes (23.5 %). A co-infection was found in 22.4 %, primarily bacterial (12 %). The mean length of stay was 12.3 ± 13.1 days. Overall, 10.9 % were admitted to an ICU and in-hospital mortality was 7.3 %. In-hospital outcomes were higher in cases of co-infection. Among 12 033 patients alive at discharge from the index stay, 6.5 % were readmitted with RSV within 90 days, 8.1 % for decompensation within 30 days, and 5.6 % died within 60-day. CONCLUSION This study demonstrated the high burden of RSV infections in older adults and those with chronic conditions, and the need for preventive strategies.
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Affiliation(s)
- Paul Loubet
- Service des Maladies Infectieuses et Tropicales, CHU Nîmes Carémeau, Université de Montpellier, Nîmes, France.
| | | | | | - Katia Sosnowiez
- Department of Medical Affairs, Janssen-Cilag, Issy-les-Moulineaux, France
| | - Anne Elong
- Department of Market Access, Janssen-Cilag, Issy-les-Moulineaux, France
| | - Caroline Guilmet
- Department of Market Access, Janssen-Cilag, Issy-les-Moulineaux, France
| | - Hanane Omichessan
- Department of Market Access, Janssen-Cilag, Issy-les-Moulineaux, France
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25
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Singh KP, Avihingsanon A, Zerbato JM, Zhao W, Braat S, Tennakoon S, Rhodes A, Matthews GV, Fairley CK, Sasadeusz J, Crane M, Audsley J, Lewin SR. Predictors of liver disease progression in people living with HIV-HBV co-infection on antiretroviral therapy. EBioMedicine 2024; 102:105054. [PMID: 38518655 PMCID: PMC10966452 DOI: 10.1016/j.ebiom.2024.105054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 02/25/2024] [Accepted: 02/27/2024] [Indexed: 03/24/2024] Open
Abstract
BACKGROUND In people living with HIV-HBV, liver fibrosis progression can occur even with suppressive antiretroviral therapy (ART). We investigated the relationship between liver fibrosis and biomarkers of inflammation, apoptosis, and microbial translocation. METHODS In this observational cohort study adults living with HIV-HBV already on effective ART were recruited in Australia and Thailand and followed for 3 years including 6 monthly clinical review and blood tests and annual transient elastography. Differences in clinical and laboratory predictors of liver fibrosis progression were tested followed by regression analysis adjusted for CD4+ T-cells at study entry. A linear mixed model was fitted to longitudinal data to explore changes over time. FINDINGS 67 participants (85% male, median age 49 y) were followed for 175 person-years. Median duration of ART was 10 years (interquartile range (IQR) 8-16 years). We found 11/59 (19%) participants during 3-years follow-up (6/100 person-years) met the primary endpoint of liver disease progression, defined as increased Metavir stage from baseline to final scan. In regression analysis, progressors compared to non-progressors had higher levels of high mobility group box 1 protein (HGMB1), (median (IQR) 3.7 (2.6-5.0) and 2.4 ng/mL (1.5-3.4) respectively, adjusted relative risk 1.47, 95% CI [1.00, 2.17]) and lower nadir CD4+ T-cell percentage (median 4% (IQR 2-8) and 11% (4-15) respectively (relative risk 0.93, 95% CI [0.88, 0.98]). INTERPRETATION Progression in liver fibrosis occurs in people with HIV-HBV on suppressive ART. Fibrosis progression was associated with higher HMGB1 and lower percentage nadir CD4+ T-cell count, highlighting the importance of early initiation of HBV-active ART. FUNDING This work was supported by NHMRC project grant 1101836; NHMRC practitioner fellowship 1138581 and NHMRC program grant 1149990. The funder had no role in study design, data collection, data analysis, interpretation, writing of this manuscript or decision to submit for publication.
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Affiliation(s)
- Kasha P Singh
- Department of Infectious Diseases, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, 3000, Australia; Victorian Infectious Diseases Service, Royal Melbourne Hospital at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, 3000, Australia; Department of Infectious Diseases, Alfred Health and Monash University, Melbourne, Victoria, 3004, Australia.
| | | | - Jennifer M Zerbato
- Department of Infectious Diseases, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, 3000, Australia
| | - Wei Zhao
- Department of Infectious Diseases, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, 3000, Australia
| | - Sabine Braat
- Centre for Epidemiology and Biostatistics, School of Population and Global Health, The University of Melbourne, Melbourne, Victoria, 3053, Australia; MISCH (Methods and Implementation Support for Clinical Health) research Hub, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, Australia
| | - Surekha Tennakoon
- Department of Infectious Diseases, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, 3000, Australia
| | - Ajantha Rhodes
- Department of Infectious Diseases, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, 3000, Australia
| | - Gail V Matthews
- Kirby Institute, UNSW, Kensington, New South Wales, 2052, Australia
| | | | - Joe Sasadeusz
- Department of Infectious Diseases, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, 3000, Australia; Victorian Infectious Diseases Service, Royal Melbourne Hospital at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, 3000, Australia; Department of Infectious Diseases, Alfred Health and Monash University, Melbourne, Victoria, 3004, Australia
| | - Megan Crane
- Department of Infectious Diseases, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, 3000, Australia
| | - Jennifer Audsley
- Department of Infectious Diseases, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, 3000, Australia
| | - Sharon R Lewin
- Department of Infectious Diseases, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, 3000, Australia; Victorian Infectious Diseases Service, Royal Melbourne Hospital at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, 3000, Australia; Department of Infectious Diseases, Alfred Health and Monash University, Melbourne, Victoria, 3004, Australia.
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26
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Ibrahim A, Kamel NO, Rageh F, Elgamal R, Mansour Salama B, Sakr MA, Elhoseeny MM, Osman EM, Sayed S, Ramadan ME. The involvement of cytokine gene polymorphism in determining the vulnerability to Blastocystis and Helicobacter pylori co-infection in the Egyptian population. Acta Trop 2024; 252:107137. [PMID: 38364930 DOI: 10.1016/j.actatropica.2024.107137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/28/2024] [Accepted: 01/29/2024] [Indexed: 02/18/2024]
Abstract
AIMS The present study aimed to identify any potential association between IL-1β and TNF-α gene polymorphism and the risk of Blastocystis infection as well as co-infection of Blastocystis with Helicobacter pylori (H.pylori). METHODOLOGY A total of 314 stool samples were collected and examined microscopically for the detection of parasitic infection. DNA was extracted from all samples and utilized to identify Blastocystis molecularly. Positive samples were used for H. pylori detection by rapid tests and PCR. Moreover, we investigate polymorphism in the TNF-α gene at position -1031T/C, -308 G/A, and IL-1β at position +3954C/T using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assay. RESULTS Out of the 314 stool samples, Blastocystis was detected in 93 (29.6 %); among them, 54 (58.1 %) had a mixed infection of Blastocystis with H. pylori. The TT genotype of the IL-1β gene at position +3954 was significantly higher in Blasocystis-infected patients than in uninfected patients (17.2% vs. 6.3 %, P = 0.02), which might be considered a risk factor (OR = 3.2; CI =1.21-8.52). The TNF-α at position -1031 TT genotype was significantly higher in Blastocystis-infected patients than uninfected patients (44.1% vs. 10.8 %, P< 0.0001). The T allele (OR= 2.67; CI=1.51-4.72, P = 0.0008) might be considered a risk factor. The TNF- α at position -308 AA genotype is higher in Blasocystis infected than uninfected (17.2% vs 7.2 %, P = 0.03). TNF-α -308 AA (OR = 2.72; CI = 1.08-6.89) and A allele (OR= 1.46; CI= 0.797-2.66) might be considered risk factors. The TNF- α at position -308 G/A showed that the GG is the most frequent genotype in Blastocystis with H. pylori-positive patients with a significant association (P = 0.004), as well as the G allele (P = 0.02). The G allele (OR=1.924; CI= 1.071-3.454) might be considered a risk factor for co-infection of Blastocystis and H. pylori. CONCLUSION SNPs (-1031 T/C and -308 G/A) of the TNF-α and (+3954 C/T) of the IL-1β may be a useful marker in the assessment of the risk of Blastocystis infection, and TNF-α at position -308 G/A) may be a predictor for co-infection of Blastocystis with H. pylori.
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Affiliation(s)
- Asmaa Ibrahim
- Genetic engineering and Biotechnology research institute, University of Sadat City (GEBRI, USC), Egypt; Departments of Medical Parasitology, Faculty of Medicine, Cairo University (Laboratory of Molecular Medical Parasitology, LMMP), Egypt.
| | - Nancy O Kamel
- Department of Medical Parasitology, Faculty of Medicine, October 6 University, Egypt
| | - Fatma Rageh
- Infectious disease, Gastroenterology and hepatology department, Suez University, Egypt
| | - Rasha Elgamal
- Clinical pathology department, Faculty of Medicine, Suez University, Egypt
| | - Bassam Mansour Salama
- Infectious and Endemic Diseases Department, Faculty of Medicine Suez Canal University, Egypt
| | - Mohamed A Sakr
- Medical Microbiology and Immunology Department, Faculty of Medicine, Suez University, P.O. Box:43221, Suez, Egypt
| | | | - Eman M Osman
- Immunology and allergy department, Medical Research Institute Alexandria University, Egypt
| | - Samar Sayed
- Community Medicine Faculty of Medicine, Suez University, Egypt
| | - Manar Ezzelarab Ramadan
- Department of Medical Parasitology, Faculty of Medicine, Suez University, P.O. Box:43221, Suez, Egypt
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27
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Kim YS, Jeong YS, Bae GH, Kang JH, Lee M, Zabel BA, Bae YS. CD200R high neutrophils with dysfunctional autophagy establish systemic immunosuppression by increasing regulatory T cells. Cell Mol Immunol 2024; 21:349-361. [PMID: 38311677 PMCID: PMC10978921 DOI: 10.1038/s41423-024-01136-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 12/21/2023] [Accepted: 01/13/2024] [Indexed: 02/06/2024] Open
Abstract
Distinct neutrophil populations arise during certain pathological conditions. The generation of dysfunctional neutrophils during sepsis and their contribution to septicemia-related systemic immune suppression remain unclear. In this study, using an experimental sepsis model that features immunosuppression, we identified a novel population of pathogenic CD200Rhigh neutrophils that are generated during the initial stages of sepsis and contribute to systemic immune suppression by enhancing regulatory T (Treg) cells. Compared to their CD200Rlow counterparts, sepsis-generated CD200Rhigh neutrophils exhibit impaired autophagy and dysfunction, with reduced chemotactic migration, superoxide anion production, and TNF-α production. Increased soluble CD200 blocks autophagy and neutrophil maturation in the bone marrow during experimental sepsis, and recombinant CD200 treatment in vitro can induce neutrophil dysfunction similar to that observed in CD200Rhigh neutrophils. The administration of an α-CD200R antibody effectively reversed neutrophil dysfunction by enhancing autophagy and protecting against a secondary infection challenge, leading to increased survival. Transcriptome analysis revealed that CD200Rhigh neutrophils expressed high levels of Igf1, which elicits the generation of Treg cells, while the administration of an α-CD200R antibody inhibited Treg cell generation in a secondary infection model. Taken together, our findings revealed a novel CD200Rhigh neutrophil population that mediates the pathogenesis of sepsis-induced systemic immunosuppression by generating Treg cells.
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Affiliation(s)
- Ye Seon Kim
- Department of Biological Sciences, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Yu Sun Jeong
- Department of Biological Sciences, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Geon Ho Bae
- Department of Biological Sciences, Sungkyunkwan University, Suwon, 16419, Republic of Korea
- Division of Immunology, Boston Children's Hospital, Boston, MA, USA
| | - Ji Hyeon Kang
- Department of Biological Sciences, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Mingyu Lee
- Department of Health Science and Technology, SAIHST, Sungkyunkwan University, Seoul, 06351, Republic of Korea
| | - Brian A Zabel
- Palo Alto Veterans Institute for Research, Veterans Affairs Hospital, Palo Alto, CA, 94304, USA
| | - Yoe-Sik Bae
- Department of Biological Sciences, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
- Department of Health Science and Technology, SAIHST, Sungkyunkwan University, Seoul, 06351, Republic of Korea.
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Zheng YR, Chen XH, Chen Q, Cao H. Metagenomic Next-generation Sequencing for Pathogen Identification in Bronchoalveolar Lavage Fluid From Neonates Receiving Extracorporeal Membrane Oxygenation. Pediatr Infect Dis J 2024; 43:371-377. [PMID: 38306604 DOI: 10.1097/inf.0000000000004250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2024]
Abstract
BACKGROUND Neonates on extracorporeal membrane oxygenation (ECMO) are at high risk of infection. Rapid and accurate identification of pathogens is essential to improve the prognosis of children on ECMO. Metagenome next-generation sequencing (mNGS) has been used in recent years to detect pathogenic bacteria, but evidence for its use in neonates on ECMO is lacking. METHODS This retrospective study was conducted using an electronic medical record system. We analyzed the results of mNGS and conventional microbiological tests (CMTs) in bronchoalveolar lavage fluid of neonates receiving ECMO support with pulmonary infections in our hospital from July 2021 to January 2023. RESULTS We screened 18 ECMO-supported neonates with pneumonia for inclusion in the study. The median age of the included children was 2 (1-4) days, the median gestational age was 38.3 (33-40 +4 ) weeks, and the median weight was 3.3 (2.2-4.8) kg. The detection rate of mNGS was 77.8% (14/18), higher than the 44.4% (8/18) of CMT ( P = 0.04). A total of 20 pathogens were detected in mNGS, with the top 3 most common pathogens being Klebsiella pneumoniae , Acinetobacter baumannii and Escherichia coli . Mixed infections were found in 14 cases (77.8%), including 13 cases (72.2%) with mixed infections detected by mNGS and 7 cases (27.8%) with mixed infections detected by CMT. A total of 9 children underwent treatment changes based on mNGS results and all of them experienced relief of symptoms. CONCLUSION Compared with CMT, mNGS can detect pathogens earlier and more sensitively, and may play an important role in ECMO-supported neonatal pneumonia pathogen detection and optimization of antibiotic therapy.
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Affiliation(s)
- Yi-Rong Zheng
- From the Department of Cardiac Surgery, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fujian Children's Hospital (Fujian Branch of Shanghai Children's Medical Center), Fuzhou, China
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Chen H, Huang Q, Wu W, Wang Z, Wang W, Liu Y, Ruan F, He C, Li J, Liu J, Wu G. Assessment and clinical utility of metagenomic next-generation sequencing for suspected lower respiratory tract infections. Eur J Med Res 2024; 29:213. [PMID: 38561853 PMCID: PMC10983704 DOI: 10.1186/s40001-024-01806-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 03/20/2024] [Indexed: 04/04/2024] Open
Abstract
OBJECTIVES This study aims to compare the diagnostic efficacy of metagenomic next-generation sequencing (mNGS) to traditional diagnostic methods in patients with lower respiratory tract infections (LRTIs), elucidate the etiological spectrum of these infections, and explore the impact of mNGS on guiding antimicrobial therapy. METHODS We retrospectively analyzed data from 128 patients admitted to the Respiratory Department of Anqing 116 Hospital between July 2022 and July 2023. All patients had undergone both mNGS and conventional microbiological techniques (CMT) for LRTI diagnosis. We assessed the diagnostic performance of these methods and examined the influence of mNGS on antimicrobial decision-making. RESULTS Overall, mNGS demonstrated superior sensitivity (96.8%) and accuracy (96.8%) compared to CMT. For Mycobacterium tuberculosis detection, the accuracy and sensitivity of mNGS was 88.8% and 77.6%, which was lower than the 94.7% sensitivity of the T-spot test and the 79.6% sensitivity of CMT. In fungal pathogen detection, mNGS showed excellent sensitivity (90.5%), specificity (86.7%), and accuracy (88.0%). Bacteria were the predominant pathogens detected (75.34%), with Mycobacterium tuberculosis (41.74%), Streptococcus pneumoniae (21.74%), and Haemophilus influenzae (16.52%) being most prevalent. Bacterial infections were most common (62.10%), followed by fungal and mixed infections (17.74%). Of the 118 patients whose treatment regimens were adjusted based on mNGS results, 102 (86.5%) improved, 7 (5.9%) did not respond favorably, and follow-up was lost for 9 patients (7.6%). CONCLUSIONS mNGS offers rapid and precise pathogen detection for patients with suspected LRTIs and shows considerable promise in diagnosing Mycobacterium tuberculosis and fungal infections. By broadening the pathogen spectrum and identifying polymicrobial infections, mNGS can significantly inform and refine antibiotic therapy.
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Affiliation(s)
- Huan Chen
- Department of Respiratory and Critical Care Medicine, Anqing 116th Hospital, No.150 Shuangjing Street, Yingjiang District, Anqing, 246004, Anhui, China.
| | - Qiong Huang
- Department of Respiratory and Critical Care Medicine, Anqing 116th Hospital, No.150 Shuangjing Street, Yingjiang District, Anqing, 246004, Anhui, China
| | - Weiwei Wu
- Dinfectome Inc., 128 Huakang Road, Jiangbei New District, Nanjing, 210000, Jiangsu, China
| | - Zhiguo Wang
- Department of Respiratory and Critical Care Medicine, Anqing 116th Hospital, No.150 Shuangjing Street, Yingjiang District, Anqing, 246004, Anhui, China
| | - Wei Wang
- Department of Respiratory and Critical Care Medicine, Anqing 116th Hospital, No.150 Shuangjing Street, Yingjiang District, Anqing, 246004, Anhui, China
| | - Yigen Liu
- Department of Respiratory and Critical Care Medicine, Anqing 116th Hospital, No.150 Shuangjing Street, Yingjiang District, Anqing, 246004, Anhui, China
| | - Fangfang Ruan
- Department of Respiratory and Critical Care Medicine, Anqing 116th Hospital, No.150 Shuangjing Street, Yingjiang District, Anqing, 246004, Anhui, China
| | - Chengzhen He
- Department of Respiratory and Critical Care Medicine, Anqing 116th Hospital, No.150 Shuangjing Street, Yingjiang District, Anqing, 246004, Anhui, China
| | - Jing Li
- Dinfectome Inc., 128 Huakang Road, Jiangbei New District, Nanjing, 210000, Jiangsu, China
| | - Jia Liu
- Dinfectome Inc., 128 Huakang Road, Jiangbei New District, Nanjing, 210000, Jiangsu, China
| | - Guocheng Wu
- Department of Respiratory and Critical Care Medicine, Anqing 116th Hospital, No.150 Shuangjing Street, Yingjiang District, Anqing, 246004, Anhui, China
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Kim J, Hickerson BT, Ilyushina NA. Coinfection of Influenza A and B and Human OC43 Coronavirus in Normal Human Bronchial Epithelial Cells. Influenza Other Respir Viruses 2024; 18:e13279. [PMID: 38556468 PMCID: PMC10982074 DOI: 10.1111/irv.13279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 03/02/2024] [Accepted: 03/04/2024] [Indexed: 04/02/2024] Open
Abstract
BACKGROUND Influenza viruses and seasonal coronaviruses are pathogens transmitted via an airborne route that can cause respiratory diseases in humans that have similar symptoms such as fever, cough, and pneumonia. These two viruses can infect similar human tissues, such as the respiratory tract and nasal, bronchial, and alveolar epithelial cells. Influenza virus and seasonal coronavirus coinfections are poorly understood. METHODS Here, we coinfected normal human bronchial epithelial (NHBE) cells with influenza A/California/04/09 (IAV) or B/Victoria/504/2000 (IBV) strains and the seasonal human beta-coronavirus OC43 and evaluated viral replication capacities. We also examined changes in the expression of various cytokines/chemokines by qPCR and Luminex assay. RESULTS We observed that the replication of IAV and IBV was not affected by coinfection with OC43. However, coinfection reduced OC43 titers (~3-fold) compared with infection with OC43 alone. Select cytokine/chemokine expression was increased in coinfected cells compared with all single infections with greater differences seen between coinfected cells and cells infected with OC43 alone compared with IAV- or IBV-infected cells. In addition, IL-8 and IL-1RA showed the highest expression among a panel of 22 cytokines by Luminex. CONCLUSIONS As the rate of influenza and seasonal coronavirus coinfection continue to increase, our findings may help set guidelines for the treatments of the individuals coinfected with both viruses.
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Affiliation(s)
- JungHyun Kim
- Division of Biotechnology Review and Research IIFood and Drug AdministrationSilver SpringMarylandUSA
| | - Brady T. Hickerson
- Division of Biotechnology Review and Research IIFood and Drug AdministrationSilver SpringMarylandUSA
| | - Natalia A. Ilyushina
- Division of Biotechnology Review and Research IIFood and Drug AdministrationSilver SpringMarylandUSA
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Visser M, Hoebe CJPA, Wolffs PFG, Heijne JCM. Anorectal Neisseria gonorrhoeae infections in women with and without reported anal sex and sex workers in sexual health centres in the Netherlands: a retrospective cohort study. Lancet Microbe 2024; 5:e326-e334. [PMID: 38359858 DOI: 10.1016/s2666-5247(23)00376-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 11/10/2023] [Accepted: 11/16/2023] [Indexed: 02/17/2024]
Abstract
BACKGROUND Control of Neisseria gonorrhoeae infection (gonorrhoea) depends on effective testing strategies. Anorectal testing in women is often done on indication of anal sex; however, anorectal infections are seen with and without anal exposure, possibly caused by autoinoculation. This study aims to enhance understanding of anorectal infections in women, by identifying risk factors for anorectal diagnosis. METHODS In this retrospective cohort study we used national surveillance data from Dutch sexual health centres from Jan 1, 2016, to Dec 31, 2021. We included cisgender women having sex with men who were tested urogenitally and anorectally for gonorrhoea. Due to different testing policies, we identified three groups: women who had not reported recent anal sex (in the past 6 months), women who had reported recent anal sex, and sex workers. Extracted data for analyses included demographics, sexual behaviour, and diagnosis of a sexually transmitted infection (STI). Per group, multivariable models using Firth's penalised maximum likelihood logistic regression were constructed, identifying determinants of anorectal gonorrhoea among all women and among gonorrhoea-positive women only. Variables included in model construction were age, education level, migration background, number of partners, condom use, partner notification, STI symptoms, having a partner who has sex with men (MSM) or a migrant partner, previous STI test, anal sex, and chlamydia and gonorrhoea diagnoses per anatomical location. FINDINGS In total, 117 693 women were included: 43 757 women without reported recent anal sex, 51 728 women with reported recent anal sex, and 22 208 sex workers. In all three groups, around 2% of women were gonorrhoea positive, and 70% or more of women had an anorectal infection. The strongest determinant of anorectal gonorrhoea was a concurrent urogenital gonorrhoea diagnosis (adjusted odds ratios [aOR] 782 [95% CI 605-1018]) among women without reported recent anal sex (612 [490-768] among women with reported recent anal sex, and 464 [335-652] among sex workers). Among gonorrhoea-positive women, determinants of anorectal gonorrhoea were urogenital and anorectal chlamydia co-infection (aOR 2·03 [95% CI 1·38-3·02], for women without reported anal sex) and migration background (1·44 [1·02-2·06], for women with reported anal sex). Determinants among sex workers were condomless sex (2·43 [1·55-3·82]), anal sex (1·71 [1·10-2·66]), MSM or migrant partner (1·78 [1·13-2·79]), and urogenital and anorectal chlamydia co-infection (2·28 [1·11-5·14]). INTERPRETATION These findings support the possibility of an autoinoculation process from the urogenital to the anorectal location due to the very strong correlation between urogenital and anorectal gonorrhoea, and due to the similarity of results across all three groups. Current testing strategies could miss anorectal infections, which should be considered when developing gonorrhoea prevention and control guidelines. FUNDING None.
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Affiliation(s)
- M Visser
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands; Department of Social Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, Netherlands.
| | - C J P A Hoebe
- Department of Social Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, Netherlands; Department of Sexual Health, Infectious Diseases and Environmental Health, Living Lab Public Health, Public Health Service South Limburg, Heerlen, Netherlands; Department of Medical Microbiology, Infectious Diseases and Infection Prevention, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Center+ (MUMC+), Maastricht, Netherlands
| | - P F G Wolffs
- Department of Medical Microbiology, Infectious Diseases and Infection Prevention, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Center+ (MUMC+), Maastricht, Netherlands
| | - J C M Heijne
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands; Department of Social Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, Netherlands; Amsterdam institute for Immunology & Infectious Diseases (AII) and Amsterdam Public Health research institute (APH), Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands; Department of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, Netherlands
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Zheng B, Chen H, Xia W, Jiang Y, Zhang J. Secondary infections of COVID-19 in schools and the effectiveness of school-based interventions: a systematic review and meta-analysis. Public Health 2024; 229:42-49. [PMID: 38394706 DOI: 10.1016/j.puhe.2024.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 12/17/2023] [Accepted: 01/16/2024] [Indexed: 02/25/2024]
Abstract
OBJECTIVES This meta-analysis explored secondary infections of SARS-CoV-2 and the effectiveness of non-pharmaceutical interventions (NPIs) in school settings, with the aim of providing a reference to formulate scientific prevention and response strategies for similar major public health emergencies in specific settings. STUDY DESIGN This was a systematic review and meta-analysis. METHODS Systematic searches were conducted in PubMed, Web of Science and the Cochrane Library through to 1 August 2022 using the following key search terms: COVID-19, SARS-CoV-2, secondary attack rate, school, transmission, etc. The IVhet model was used for the meta-analysis, and the I2 index and Cochran's Q-test were used to assess heterogeneity. Publication bias was examined using Doi plot, Galbraith plots and Luis Furuya-Kanamori index. Prevalence Critical Appraisal Tool was used to assess the quality of the included articles, while Grading of Recommendations Assessment, Development, and Evaluation was used to rate the quality of the evidence. Subgroup analyses were conducted to explore the potential source of heterogeneity. RESULTS Thirty-four studies involving 226,727 school contacts and 2216 secondary cases were included in this study. The pooled secondary attack rates (SARs) of close contacts, staff contacts and student contacts were 0.67% (95% confidence interval [CI]: 0.11, 1.56), 0.79% (95% CI: 0.00, 6.72) and 0.50% (95% CI: 0.00, 4.48), respectively. Subgroup analysis suggested that multiple or specific combinations (e.g. the combination of contact restriction and hygiene action) of NPIs appeared to be associated with lower SARs. CONCLUSIONS The SAR of SARS-CoV-2 was low in schools. Multiple or specific combinations of prevention strategies appear to mitigate SARS-CoV-2 transmission in school settings. These findings provide a basis for continuous improvement of response strategies to major public health emergencies in the school environment.
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Affiliation(s)
- B Zheng
- Department of Maternal and Child Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment & Health (Huazhong University of Science and Technology), Ministry of Education, Wuhan, Hubei, China.
| | - H Chen
- Department of Maternal and Child Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment & Health (Huazhong University of Science and Technology), Ministry of Education, Wuhan, Hubei, China.
| | - W Xia
- Department of Maternal and Child Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment & Health (Huazhong University of Science and Technology), Ministry of Education, Wuhan, Hubei, China.
| | - Y Jiang
- Department of Maternal and Child Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment & Health (Huazhong University of Science and Technology), Ministry of Education, Wuhan, Hubei, China.
| | - J Zhang
- Department of Maternal and Child Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment & Health (Huazhong University of Science and Technology), Ministry of Education, Wuhan, Hubei, China.
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Pinto D, Themudo G, Pereira AC, Botelho A, Cunha MV. Rescue of Mycobacterium bovis DNA Obtained from Cultured Samples during Official Surveillance of Animal TB: Key Steps for Robust Whole Genome Sequence Data Generation. Int J Mol Sci 2024; 25:3869. [PMID: 38612679 PMCID: PMC11011339 DOI: 10.3390/ijms25073869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 03/28/2024] [Accepted: 03/28/2024] [Indexed: 04/14/2024] Open
Abstract
Epidemiological surveillance of animal tuberculosis (TB) based on whole genome sequencing (WGS) of Mycobacterium bovis has recently gained track due to its high resolution to identify infection sources, characterize the pathogen population structure, and facilitate contact tracing. However, the workflow from bacterial isolation to sequence data analysis has several technical challenges that may severely impact the power to understand the epidemiological scenario and inform outbreak response. While trying to use archived DNA from cultured samples obtained during routine official surveillance of animal TB in Portugal, we struggled against three major challenges: the low amount of M. bovis DNA obtained from routinely processed animal samples; the lack of purity of M. bovis DNA, i.e., high levels of contamination with DNA from other organisms; and the co-occurrence of more than one M. bovis strain per sample (within-host mixed infection). The loss of isolated genomes generates missed links in transmission chain reconstruction, hampering the biological and epidemiological interpretation of data as a whole. Upon identification of these challenges, we implemented an integrated solution framework based on whole genome amplification and a dedicated computational pipeline to minimize their effects and recover as many genomes as possible. With the approaches described herein, we were able to recover 62 out of 100 samples that would have otherwise been lost. Based on these results, we discuss adjustments that should be made in official and research laboratories to facilitate the sequential implementation of bacteriological culture, PCR, downstream genomics, and computational-based methods. All of this in a time frame supporting data-driven intervention.
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Affiliation(s)
- Daniela Pinto
- Centre for Ecology, Evolution and Environmental Changes (cE3c) & CHANGE—Global Change and Sustainability Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (D.P.); (A.C.P.)
- Biosystems & Integrative Sciences Institute (BioISI), Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Gonçalo Themudo
- Centre for Ecology, Evolution and Environmental Changes (cE3c) & CHANGE—Global Change and Sustainability Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (D.P.); (A.C.P.)
| | - André C. Pereira
- Centre for Ecology, Evolution and Environmental Changes (cE3c) & CHANGE—Global Change and Sustainability Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (D.P.); (A.C.P.)
- Biosystems & Integrative Sciences Institute (BioISI), Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Ana Botelho
- National Institute for Agrarian and Veterinary Research (INIAV IP), Av. da República, Quinta do Marquês, 2780-157 Oeiras, Portugal;
| | - Mónica V. Cunha
- Centre for Ecology, Evolution and Environmental Changes (cE3c) & CHANGE—Global Change and Sustainability Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (D.P.); (A.C.P.)
- Biosystems & Integrative Sciences Institute (BioISI), Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
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Bull JJ, Wichman HA, Krone SM, Molineux IJ. Controlling Recombination to Evolve Bacteriophages. Cells 2024; 13:585. [PMID: 38607024 PMCID: PMC11011186 DOI: 10.3390/cells13070585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/07/2024] [Accepted: 03/26/2024] [Indexed: 04/13/2024] Open
Abstract
Recombination among different phages sometimes facilitates their ability to grow on new hosts. Protocols to direct the evolution of phage host range, as might be used in the application of phage therapy, would then benefit from including steps to enable recombination. Applying mathematical and computational models, in addition to experiments using phages T3 and T7, we consider ways that a protocol may influence recombination levels. We first address coinfection, which is the first step to enabling recombination. The multiplicity of infection (MOI, the ratio of phage to cell concentration) is insufficient for predicting (co)infection levels. The force of infection (the rate at which cells are infected) is also critical but is more challenging to measure. Using both a high force of infection and high MOI (>1) for the different phages ensures high levels of coinfection. We also apply a four-genetic-locus model to study protocol effects on recombinant levels. Recombinants accumulate over multiple generations of phage growth, less so if one phage outgrows the other. Supplementing the phage pool with the low-fitness phage recovers some of this 'lost' recombination. Overall, fine tuning of phage recombination rates will not be practical with wild phages, but qualitative enhancement can be attained with some basic procedures.
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Affiliation(s)
- James J. Bull
- Department of Biological Sciences, University of Idaho, Moscow, ID 83844, USA;
- Institute for Modeling Collaboration and Innovation, University of Idaho, Moscow, ID 83844, USA;
| | - Holly A. Wichman
- Department of Biological Sciences, University of Idaho, Moscow, ID 83844, USA;
- Institute for Modeling Collaboration and Innovation, University of Idaho, Moscow, ID 83844, USA;
| | - Stephen M. Krone
- Institute for Modeling Collaboration and Innovation, University of Idaho, Moscow, ID 83844, USA;
- Department of Mathematics and Statistical Science, University of Idaho, Moscow, ID 83844, USA
| | - Ian J. Molineux
- Institute for Cell and Molecular Biology, Department of Molecular Biosciences, LaMontagne Center for Infectious Diseases, The University of Texas, Austin, TX 78712, USA;
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Owusu D, Ndegwa LK, Ayugi J, Kinuthia P, Kalani R, Okeyo M, Otieno NA, Kikwai G, Juma B, Munyua P, Kuria F, Okunga E, Moen AC, Emukule GO. Use of Sentinel Surveillance Platforms for Monitoring SARS-CoV-2 Activity: Evidence From Analysis of Kenya Influenza Sentinel Surveillance Data. JMIR Public Health Surveill 2024; 10:e50799. [PMID: 38526537 PMCID: PMC11002741 DOI: 10.2196/50799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 12/19/2023] [Accepted: 02/02/2024] [Indexed: 03/26/2024] Open
Abstract
BACKGROUND Little is known about the cocirculation of influenza and SARS-CoV-2 viruses during the COVID-19 pandemic and the use of respiratory disease sentinel surveillance platforms for monitoring SARS-CoV-2 activity in sub-Saharan Africa. OBJECTIVE We aimed to describe influenza and SARS-CoV-2 cocirculation in Kenya and how the SARS-CoV-2 data from influenza sentinel surveillance correlated with that of universal national surveillance. METHODS From April 2020 to March 2022, we enrolled 7349 patients with severe acute respiratory illness or influenza-like illness at 8 sentinel influenza surveillance sites in Kenya and collected demographic, clinical, underlying medical condition, vaccination, and exposure information, as well as respiratory specimens, from them. Respiratory specimens were tested for influenza and SARS-CoV-2 by real-time reverse transcription polymerase chain reaction. The universal national-level SARS-CoV-2 data were also obtained from the Kenya Ministry of Health. The universal national-level SARS-CoV-2 data were collected from all health facilities nationally, border entry points, and contact tracing in Kenya. Epidemic curves and Pearson r were used to describe the correlation between SARS-CoV-2 positivity in data from the 8 influenza sentinel sites in Kenya and that of the universal national SARS-CoV-2 surveillance data. A logistic regression model was used to assess the association between influenza and SARS-CoV-2 coinfection with severe clinical illness. We defined severe clinical illness as any of oxygen saturation <90%, in-hospital death, admission to intensive care unit or high dependence unit, mechanical ventilation, or a report of any danger sign (ie, inability to drink or eat, severe vomiting, grunting, stridor, or unconsciousness in children younger than 5 years) among patients with severe acute respiratory illness. RESULTS Of the 7349 patients from the influenza sentinel surveillance sites, 76.3% (n=5606) were younger than 5 years. We detected any influenza (A or B) in 8.7% (629/7224), SARS-CoV-2 in 10.7% (768/7199), and coinfection in 0.9% (63/7165) of samples tested. Although the number of samples tested for SARS-CoV-2 from the sentinel surveillance was only 0.2% (60 per week vs 36,000 per week) of the number tested in the universal national surveillance, SARS-CoV-2 positivity in the sentinel surveillance data significantly correlated with that of the universal national surveillance (Pearson r=0.58; P<.001). The adjusted odds ratios (aOR) of clinical severe illness among participants with coinfection were similar to those of patients with influenza only (aOR 0.91, 95% CI 0.47-1.79) and SARS-CoV-2 only (aOR 0.92, 95% CI 0.47-1.82). CONCLUSIONS Influenza substantially cocirculated with SARS-CoV-2 in Kenya. We found a significant correlation of SARS-CoV-2 positivity in the data from 8 influenza sentinel surveillance sites with that of the universal national SARS-CoV-2 surveillance data. Our findings indicate that the influenza sentinel surveillance system can be used as a sustainable platform for monitoring respiratory pathogens of pandemic potential or public health importance.
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Affiliation(s)
- Daniel Owusu
- Influenza Division, US Centers for Disease Control and Prevention, Atlanta, GA, United States
| | - Linus K Ndegwa
- Global Influenza Branch, Influenza Division, US Centers for Disease Control and Prevention, Nairobi, Kenya
| | - Jorim Ayugi
- Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya
| | | | - Rosalia Kalani
- Disease Surveillance and Response Unit, Ministry of Health, Nairobi, Kenya
| | - Mary Okeyo
- National Influenza Centre Laboratory, National Public Health Laboratories, Ministry of Health, Nairobi, Kenya
| | - Nancy A Otieno
- Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya
| | - Gilbert Kikwai
- Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya
| | - Bonventure Juma
- Global Influenza Branch, Influenza Division, US Centers for Disease Control and Prevention, Nairobi, Kenya
| | - Peninah Munyua
- Global Influenza Branch, Influenza Division, US Centers for Disease Control and Prevention, Nairobi, Kenya
| | - Francis Kuria
- Directorate of Public Health, Ministry of Health, Nairobi, Kenya
| | - Emmanuel Okunga
- Disease Surveillance and Response Unit, Ministry of Health, Nairobi, Kenya
| | - Ann C Moen
- Influenza Division, US Centers for Disease Control and Prevention, Atlanta, GA, United States
| | - Gideon O Emukule
- Global Influenza Branch, Influenza Division, US Centers for Disease Control and Prevention, Nairobi, Kenya
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Liu HF, Feng QL, Huang RW, Yuan TY, Sui MZ, Li PL, Liu K, Li F, Li Y, Jiang L, Fu HM. [Clinical characteristics of hospitalized children with respiratory syncytial virus infection and risk prediction of severe illness during the post-COVID-19 era in Kunming]. Zhonghua Er Ke Za Zhi 2024; 62:323-330. [PMID: 38527502 DOI: 10.3760/cma.j.cn112140-20240219-00109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Objective: To compare the epidemiological and clinical characteristics of hospitalized children with respiratory syncytial virus (RSV) infection in Kunming among the pre-and post-COVID-19 era, and to establish a prediction model for severe RSV infection in children during the post-COVID-19 period. Methods: This was a retrospective study. Clinical and laboratory data were collected from 959 children hospitalized with RSV infection in the Department of Pulmonary and Critical Care Medicine at Kunming Children's Hospital during January to December 2019 and January to December 2023. Patients admitted in 2019 were defined as the pre-COVID-19 group, while those admitted in 2023 were classified as the post-COVID-19 group. Epidemiological and clinical characteristics were compared between the two groups. Subsequently, comparison of the clinical severity among the two groups was performed based on propensity score matching (PSM). Furthermore, the subjects in the post-COVID-19 group were divided into severe and non-severe groups based on clinical severity. Chi-square test and Mann-Whitney U test were used for pairwise comparison between groups, and multivariate Logistic regression was applied for the identification of independent risk factors and construction of the prediction model. The receiver operating characteristic (ROC) curve and calibration curve were employed to evaluate the predictive performance of this model. Results: Among the 959 children hospitalized with RSV infection, there were 555 males and 404 females, with an onset age of 15.4 (7.3, 28.5) months. Of which, there were 331 cases in the pre-COVID-19 group and 628 cases in the post-COVID-19 group. The peak period of RSV hospitalization in the post-COVID-19 group were from May to October 2023, and the monthly number of inpatients for each of these months were as follows: 72 cases (11.5%), 98 cases (15.6%), 128 cases (20.4%), 101 cases (16.1%), 65 cases (10.4%), and 61 cases (9.7%), respectively. After PSM for general data, 267 cases were matched in each group. The proportion of wheezing in the post-COVID-19 group was lower than that in the pre-COVID-19 group (109 cases (40.8%) vs. 161 cases (60.3%), χ2=20.26, P<0.001), while the incidences of fever, tachypnea, seizures, severe case, neutrophil-to-lymphocyte ratio (NLR), C-reactive protein and interleukin-6 levels were all higher than those in the pre-COVID-19 group (146 cases (54.7%) vs. 119 cases (44.6%), 117 cases (43.8%) vs. 89 cases (33.3%), 37 cases (13.9%) vs. 14 cases (5.2%), 69 cases (25.8%) vs. 45 cases (16.9%), 3.6 (1.9, 6.4) vs. 2.3 (1.8, 4.6), 9.9 (7.1, 15.2) vs. 7.8 (4.5, 13.9) mg/L, 20.5 (15.7, 30.4) vs. 17.2 (11.0, 26.9) ng/L, χ2=5.46, 6.36, 11.47, 6.42, Z=4.13, 3.06, 2.96, all P<0.05). There were 252 cases and 107 cases with co-infection in the post-and pre-COVID-19 groups, respectively. The proportion of triple and quadruple infection in the post-COVID-19 group was higher than that in the pre-COVID-19 group (59 cases (23.4%) vs. 13 cases (12.1%), 30 cases (11.9%) vs. 5 cases (4.7%), χ2=5.94, 4.46, both P<0.05). Among the 252 cases with co-infection in post-COVID-19 group, the most prevalent pathogens involving in co-infections, in order, were Mycoplasma pneumoniae 56 cases (22.2%), Influenza A virus 53 cases (21.0%), Rhinovirus 48 cases (19.0%), Parainfluenza virus 35 cases (13.9%), and Adenovirus 28 cases (11.1%).The result of multivariate Logistic regression showed that age (OR=0.70, 95%CI 0.62-0.78, P<0.001), underlying diseases (OR=10.03, 95%CI 4.10-24.55, P<0.001), premature birth (OR=6.78, 95%CI 3.53-13.04, P<0.001), NLR (OR=1.85, 95%CI 1.09-3.15, P=0.023), and co-infection (OR=1.28, 95%CI 1.18-1.38, P<0.001) were independently associated with the development of severe RSV infection in the post-COVID-19 group. The ROC curve of the prediction model integrating the above five factors indicated an area under the curve of 0.85 (95%CI 0.80-0.89, P<0.001), with an optimal cutoff of 0.21, a sensitivity of 0.83 and a specificity of 0.80. The calibration curve showed that the predicted probability in this model did not differ significantly from the actual probability (P=0.319). Conclusions: In the post-COVID-19 era in Kunming, the peak in pediatric hospitalizations for RSV infection was from May to October, with declined incidence of wheezing and increased incidence of fever, tachypnea, seizures, severe cases, and rates of triple and quadruple co-infections. Age, underlying diseases, premature birth, NLR, and co-infection were identified as independent risk factors for severe RSV infection in the post-COVID-19 period. In this study, a risk prediction model for severe pediatric RSV infection was established, which had a good predictive performance.
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Affiliation(s)
- H F Liu
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - Q L Feng
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - R W Huang
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - T Y Yuan
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - M Z Sui
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - P L Li
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - K Liu
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - F Li
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - Y Li
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - L Jiang
- Department of Laboratory Medicine, Kunming Children's Hospital, Kunming 650034, China
| | - H M Fu
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
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Oláh CZ, Czakó J, Godó ZA, Farkas M, Papp M, Czabajszki M. [Co-infection of SARS-CoV-2 and Clostridioides difficile in elderly patients treated in a neurosurgery postoperative care unit]. Orv Hetil 2024; 165:464-469. [PMID: 38522053 DOI: 10.1556/650.2024.32975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 01/31/2024] [Indexed: 03/25/2024]
Affiliation(s)
- Csaba Zsolt Oláh
- 1 Borsod-Abaúj-Zemplén Vármegyei Központi Kórház és Egyetemi Oktatókórház Miskolc, Szentpéteri kapu 72-76., 3526 Magyarország
- 2 Tokaj-Hegyalja Egyetem Sárospatak Magyarország
| | - Judit Czakó
- 1 Borsod-Abaúj-Zemplén Vármegyei Központi Kórház és Egyetemi Oktatókórház Miskolc, Szentpéteri kapu 72-76., 3526 Magyarország
| | - Zoltán Attila Godó
- 2 Tokaj-Hegyalja Egyetem Sárospatak Magyarország
- 3 Debreceni Egyetem, Informatikai Kar, Információ Technológia Tanszék Debrecen Magyarország
| | - Mária Farkas
- 4 Corden Laboratórium Hálózat Miskolc Magyarország
| | | | - Máté Czabajszki
- 1 Borsod-Abaúj-Zemplén Vármegyei Központi Kórház és Egyetemi Oktatókórház Miskolc, Szentpéteri kapu 72-76., 3526 Magyarország
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Cortes MA, Bert W, Couvreur M, De Waele D, Singh PR. Nematodes associated with terrestrial gastropod molluscs in Belgium and additional characterisation of Pellioditis californica and P. hermaphrodita. J Helminthol 2024; 98:e27. [PMID: 38509853 DOI: 10.1017/s0022149x2400004x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
A survey for slug- and snail-associated nematodes was conducted in forests, parks, botanical gardens, and nature reserves at 13 localities in Belgium to uncover more diversity of gastropod mollusc-associated nematodes and to characterise Pellioditis populations found in the country. A total of 319 slugs and snails belonging to nine species were examined. Arion vulgaris was the most commonly found mollusc species in this study (eight locations), and 19.4% of the examined mollusc specimens were found infected by nematodes. The highest prevalence of nematodes was observed in Cornu aspersum (60%) followed by A. vulgaris (34.8%), Limax maximus (28.6%), and Cepaea sp. (20%). Eleven nematode species belonging to eight families were isolated and identified from the mollusc hosts including Alloionema appendiculatum, Angiostoma dentiferum, A. gandavense, Angiostrongylus vasorum, Cosmocerca longicauda, Panagrolaimus cf. subelongatus, Pellioditis californica, P. hermaphrodita, Rhabditis sp., Tetrameres cf. fissispina, and Troglostrongylus cf. brevior.Pellioditis was the most commonly found nematode genus (at nine localities) and C. longicauda and P. californica were reported in Belgium for the first time. Co-infections of more than one nematode species were observed in eight (2.5%) molluscs specimens. Most co-infections consisted of two nematode species. In one A. vulgaris specimen, a co-infection of three nematode species (A. vasorum, P. hermaphrodita, and Tetrameres cf. fissispina) was observed. Four ex vivo cultures of P. californica and six ex vivo cultures of P. hermaphrodita were established from single hermaphrodites, and both species were described based on light microscopy, scanning electron microscopy, and morphometric, morphological, and molecular data.
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Affiliation(s)
- M A Cortes
- Nematology Research Unit, Department of Biology, Ghent University, K.L. Ledeganckstraat 35, 9000Ghent, Belgium
- Department of Veterinary Paraclinical Sciences, College of Veterinary Medicine, Visayas State University, Visca, Baybay City, Leyte, Philippines
| | - W Bert
- Nematology Research Unit, Department of Biology, Ghent University, K.L. Ledeganckstraat 35, 9000Ghent, Belgium
| | - M Couvreur
- Nematology Research Unit, Department of Biology, Ghent University, K.L. Ledeganckstraat 35, 9000Ghent, Belgium
| | - D De Waele
- Unit for Environmental Sciences and Management, North-West University, Private Bag X6001, Potchefstroom, South Africa
- Laboratory of Tropical Crop Improvement, Department of Biosystems, Faculty of Bioscience Engineering, University of Leuven, Willem de Croylaan 42, 3001Heverlee, Belgium
| | - P R Singh
- Department of Entomology and Nematology, Fort Lauderdale Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, 3205 College Ave., Davie, FL33314-7719, USA
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Wang YM, Liu YS, Li J, Zhang Q, Yan TT, Ren DF, Zhu L, Zhang GY, Yang Y, Liu JF, Chen TY, Zhao YR, He YL. [Prognostic nutritional index application value for acute-on-chronic liver failure co-infection]. Zhonghua Gan Zang Bing Za Zhi 2024; 32:235-241. [PMID: 38584105 DOI: 10.3760/cma.j.cn501113-20240109-00021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Objective: To explore the predictive value of the prognostic nutritional index (PNI) in concurrently infected patients with acute-on-chronic liver failure (ACLF). Methods: 220 cases with ACLF diagnosed and treated at the First Affiliated Hospital of Xi'an Jiaotong University from January 2011 to December 2016 were selected. Patients were divided into an infection and non-infection group according to whether they had co-infections during the course of the disease. Clinical data differences were compared between the two groups of patients. Binary logistic regression analysis was used to screen out influencing factors related to co-infection. The receiver operating characteristic curve was used to evaluate the predictive value of PNI for ACLF co-infection. The measurement data between groups were compared using the independent sample t-test and the Mann-Whitney U rank sum test. The enumeration data were analyzed using the Fisher exact probability test or the Pearson χ(2) test. The Pearson method was performed for correlation analysis. The independent risk factors for liver failure associated with co-infection were analyzed by multivariate logistic analysis. Results: There were statistically significant differences in ascites, hepatorenal syndrome, PNI score, and albumin between the infection and the non-infection group (P < 0.05). Among the 220 ACLF cases, 158 (71.82%) were infected with the hepatitis B virus (HBV). The incidence rate of infection during hospitalization was 69.09% (152/220). The common sites of infection were intraabdominal (57.07%) and pulmonary infection (29.29%). Pearson correlation analysis showed that PNI and MELD-Na were negatively correlated (r = -0.150, P < 0.05). Multivariate logistic analysis results showed that low PNI score (OR=0.916, 95%CI: 0.865~0.970), ascites (OR=4.243, 95%CI: 2.237~8.047), and hepatorenal syndrome (OR=4.082, 95%CI : 1.106~15.067) were risk factors for ACLF co-infection (P < 0.05). The ROC results showed that the PNI curve area (0.648) was higher than the MELD-Na score curve area (0.610, P < 0.05). The effectiveness of predicting infection risk when PNI was combined with ascites and hepatorenal syndrome complications was raised. Patients with co-infections had a good predictive effect when PNI ≤ 40.625. The sensitivity and specificity were 84.2% and 41.2%, respectively. Conclusion: Low PNI score and ACLF co-infection have a close correlation. Therefore, PNI has a certain appraisal value for ACLF co-infection.
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Affiliation(s)
- Y M Wang
- Department of Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China Shaanxi Clinical Research Center for Infectious Diseases, Xi'an 710061, China Clinical Research Center for Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Y S Liu
- Department of Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China Shaanxi Clinical Research Center for Infectious Diseases, Xi'an 710061, China Clinical Research Center for Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - J Li
- Department of Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China Shaanxi Clinical Research Center for Infectious Diseases, Xi'an 710061, China Clinical Research Center for Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Q Zhang
- Department of Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China Shaanxi Clinical Research Center for Infectious Diseases, Xi'an 710061, China Clinical Research Center for Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - T T Yan
- Department of Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China Shaanxi Clinical Research Center for Infectious Diseases, Xi'an 710061, China Clinical Research Center for Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - D F Ren
- Department of Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China Shaanxi Clinical Research Center for Infectious Diseases, Xi'an 710061, China Clinical Research Center for Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - L Zhu
- Department of Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China Shaanxi Clinical Research Center for Infectious Diseases, Xi'an 710061, China Clinical Research Center for Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - G Y Zhang
- Department of Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China Shaanxi Clinical Research Center for Infectious Diseases, Xi'an 710061, China Clinical Research Center for Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Y Yang
- Department of Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China Shaanxi Clinical Research Center for Infectious Diseases, Xi'an 710061, China Clinical Research Center for Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - J F Liu
- Department of Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China Shaanxi Clinical Research Center for Infectious Diseases, Xi'an 710061, China Clinical Research Center for Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - T Y Chen
- Department of Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China Shaanxi Clinical Research Center for Infectious Diseases, Xi'an 710061, China Clinical Research Center for Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Y R Zhao
- Department of Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China Shaanxi Clinical Research Center for Infectious Diseases, Xi'an 710061, China Clinical Research Center for Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Y L He
- Department of Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China Shaanxi Clinical Research Center for Infectious Diseases, Xi'an 710061, China Clinical Research Center for Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
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Lin GL, Drysdale SB, Snape MD, O'Connor D, Brown A, MacIntyre-Cockett G, Mellado-Gomez E, de Cesare M, Ansari MA, Bonsall D, Bray JE, Jolley KA, Bowden R, Aerssens J, Bont L, Openshaw PJM, Martinon-Torres F, Nair H, Golubchik T, Pollard AJ. Targeted metagenomics reveals association between severity and pathogen co-detection in infants with respiratory syncytial virus. Nat Commun 2024; 15:2379. [PMID: 38493135 PMCID: PMC10944482 DOI: 10.1038/s41467-024-46648-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 02/23/2024] [Indexed: 03/18/2024] Open
Abstract
Respiratory syncytial virus (RSV) is the leading cause of hospitalisation for respiratory infection in young children. RSV disease severity is known to be age-dependent and highest in young infants, but other correlates of severity, particularly the presence of additional respiratory pathogens, are less well understood. In this study, nasopharyngeal swabs were collected from two cohorts of RSV-positive infants <12 months in Spain, the UK, and the Netherlands during 2017-20. We show, using targeted metagenomic sequencing of >100 pathogens, including all common respiratory viruses and bacteria, from samples collected from 433 infants, that burden of additional viruses is common (111/433, 26%) but only modestly correlates with RSV disease severity. In contrast, there is strong evidence in both cohorts and across age groups that presence of Haemophilus bacteria (194/433, 45%) is associated with higher severity, including much higher rates of hospitalisation (odds ratio 4.25, 95% CI 2.03-9.31). There is no evidence for association between higher severity and other detected bacteria, and no difference in severity between RSV genotypes. Our findings reveal the genomic diversity of additional pathogens during RSV infection in infants, and provide an evidence base for future causal investigations of the impact of co-infection on RSV disease severity.
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Affiliation(s)
- Gu-Lung Lin
- Oxford Vaccine Group, Department of Paediatrics, University of Oxford, Oxford, UK.
- NIHR Oxford Biomedical Research Centre, Oxford, UK.
| | - Simon B Drysdale
- Oxford Vaccine Group, Department of Paediatrics, University of Oxford, Oxford, UK
- NIHR Oxford Biomedical Research Centre, Oxford, UK
- Centre for Neonatal and Paediatric Infection, Institute for Infection and Immunity, St George's, University of London, London, UK
| | - Matthew D Snape
- Oxford Vaccine Group, Department of Paediatrics, University of Oxford, Oxford, UK
- NIHR Oxford Biomedical Research Centre, Oxford, UK
| | - Daniel O'Connor
- Oxford Vaccine Group, Department of Paediatrics, University of Oxford, Oxford, UK
- NIHR Oxford Biomedical Research Centre, Oxford, UK
| | - Anthony Brown
- Peter Medawar Building for Pathogen Research, University of Oxford, Oxford, UK
| | | | - Esther Mellado-Gomez
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
- Wellcome Sanger Institute, Hinxton, UK
| | - Mariateresa de Cesare
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
- Human Technopole, Milan, Italy
| | - M Azim Ansari
- Peter Medawar Building for Pathogen Research, University of Oxford, Oxford, UK
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - David Bonsall
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
- Big Data Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - James E Bray
- Department of Biology, University of Oxford, Oxford, UK
| | | | - Rory Bowden
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, VIC, Australia
| | - Jeroen Aerssens
- Translational Biomarkers, Infectious Diseases Therapeutic Area, Janssen Pharmaceutica NV, Beerse, Belgium
| | - Louis Bont
- Department of Pediatrics, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, Netherlands
- ReSViNET Foundation, Zeist, Netherlands
| | | | - Federico Martinon-Torres
- Translational Pediatrics and Infectious Diseases, Pediatrics Department, Hospital Clínico Universitario de Santiago de Compostela, Santiago de Compostela, Spain
- Genetics, Vaccines, Infectious Diseases and Pediatrics Research Group (GENVIP), Instituto de Investigación Sanitaria de Santiago, University of Santiago de Compostela, Santiago de Compostela, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Harish Nair
- Centre for Global Health, Usher Institute, Edinburgh Medical School, University of Edinburgh, Edinburgh, UK
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Tanya Golubchik
- Big Data Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
- Sydney Infectious Diseases Institute, School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Sydney, Australia.
| | - Andrew J Pollard
- Oxford Vaccine Group, Department of Paediatrics, University of Oxford, Oxford, UK
- NIHR Oxford Biomedical Research Centre, Oxford, UK
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Zhang WX, Neupane AS, David BA, Ginhoux F, Vargas E Silva Castanheira F, Kubes P. A Functional Assessment of Fetal Liver and Monocyte-Derived Macrophages in the Lung Alveolar Environment. J Immunol 2024; 212:1012-1021. [PMID: 38251913 DOI: 10.4049/jimmunol.2300626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 01/03/2024] [Indexed: 01/23/2024]
Abstract
It is becoming clear that every organ is seeded by a population of fetal liver-derived macrophages that are replaced at different rates by monocyte-derived macrophages. Using the Ms4a3tdTomato reporter mouse that reports on monocyte-derived alveolar macrophages (Mo-AMs) and our ability to examine AM function using our multichannel intravital microscopy, we examined the fetal-liver derived alveolar macrophage (FL-AM) and Mo-AM populations within the same mouse under various environmental conditions. The experiments unveiled that AMs migrated from alveolus to alveolus and phagocytosed bacteria identically regardless of ontogenic origin. Using 50 PFU of influenza A virus (IAV) determined using the Madin-Darby canine kidney (MDCK) cell line, we noted that both populations were susceptible to IAV-induced immunoparalysis, which also led to impaired phagocytosis of secondary bacterial infections. Both FL-AMs and Mo-AMs were trained by β-glucan to resist IAV-induced paralysis. Over time (40 wk), Mo-AMs began to outperform FL-AMs, although both populations were still sensitive to IAV. Our data also show that clodronate depletion of AMs leads to replenishment, but by FL-AMs, and these macrophages do show some functional impairment for a limited time. Overall, the system is designed such that new macrophages rapidly assume the function of tissue-resident macrophages when both populations are examined in an identical environment. These data do differ from artificial depletion methods that compare Mo-AMs and FL-AMs.
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Affiliation(s)
- Wen Xuan Zhang
- Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Arpan Sharma Neupane
- Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Bruna Araujo David
- Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Florent Ginhoux
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore, Singapore
- Gustave Roussy Cancer Campus, Villejuif, France
| | - Fernanda Vargas E Silva Castanheira
- Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Paul Kubes
- Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Microbiology, Immunology & Infectious Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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Yuan L, Chen Q, Zhu XY, Lai LM, Zhao R, Liu Y. Evaluation of clinical characteristics and risk factors associated with Chlamydia psittaci infection based on metagenomic next-generation sequencing. BMC Microbiol 2024; 24:86. [PMID: 38481150 PMCID: PMC10935969 DOI: 10.1186/s12866-024-03236-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 02/26/2024] [Indexed: 03/17/2024] Open
Abstract
INTRODUCTION Psittacosis is a zoonosis caused by Chlamydia psittaci, the clinical manifestations of Psittacosis range from mild illness to fulminant severe pneumonia with multiple organ failure. This study aimed to evaluate the clinical characteristics of Chlamydia psittaci infection diagnosed based on metagenomic next-generation sequencing(mNGS), as well as the risk factors affecting the progress of Chlamydia psittaci infection, in order to improve the effect of therapeutics. METHODS We retrospectively analyzed the clinical data of patients infected with chlamydia psittaci in the First Affiliated Hospital of Nanchang University from January 2021 to December 2021. The patient's past medical history, clinical manifestations, laboratory examinations, chest CT results, treatment status, and prognosis data were collected. we also investigated both the pathogenic profile characteristics and the lower respiratory tract microbiota of patients with Chlamydia psittaci pneumonia using mNGS. RESULTS All cases of Chlamydia psittaci in our research have been confirmed by mNGS. Among 46 cases of Chlamydia psittaci pneumonia, Poultry exposure was reported in 35 cases. In severe cases of Chlamydia psittaci pneumonia, Neutrophils, Procalcitonin (PCT), Lactate Dehydrogenase (LDH), Hydroxybutyrate Dehydrogenase (HBDH), Creatine Kinase Isoenzymes-B (CK-MB) and D-Dimer levels were remarkably higher than that of non-severe cases, except for lymphocytes (all P < 0.05). Chest CT scans showed Bilateral (77.8%), multiple lobar lungs (85.2%), pleural effusions (44.4%) involvement in those suffering from severe Chlamydia psittaci pneumonia, whereas its incidence was 0%, 21.1% and 10.5% in non-severe patients, respectively (P < 0.05). Multivariate analysis revealed that higher lymphocyte concentrations (OR 0.836, 95% CI 0.714-0.962, P = 0.041) were the only protective factor for survival. mNGS results indicated that 41.3% of patients (19/46) had suspected coinfections with a coinfection rate of 84.2% (16/19) in the severe group, much higher than that in the non severe group (p < 0.05). No significantly different profiles of lower respiratory tract microbiota diversity were found between non severe group and severe group. CONCLUSION A history of poultry exposure in patients can serve as an important basis for diagnosing Chlamydia psittaci pneumonia, and patients with severe Chlamydia psittaci pneumonia are more likely to develop elevated inflammatory biomarkers as well as elevated cardiac markers. Higher lymphocyte concentrations are protective factors associated with severe C. psittaci pneumonia. The higher proportion of patients with coinfections in our study supports the use of mNGS for comprehensive early detection of respiratory infections in patients with C. psittaci pneumonia.
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Affiliation(s)
- Lei Yuan
- Department of Clinical laboratory, The First Affiliated Hospital of Nanchang University of Nanchang University, Nanchang University, No.17, YongWaiZhengStreet, Nanchang, 330006, China
| | - Qiang Chen
- Department of Clinical laboratory, The First Affiliated Hospital of Nanchang University of Nanchang University, Nanchang University, No.17, YongWaiZhengStreet, Nanchang, 330006, China
| | - Xin Yu Zhu
- Department of Clinical laboratory, The First Affiliated Hospital of Nanchang University of Nanchang University, Nanchang University, No.17, YongWaiZhengStreet, Nanchang, 330006, China
| | - Lan Min Lai
- Department of Clinical laboratory, The First Affiliated Hospital of Nanchang University of Nanchang University, Nanchang University, No.17, YongWaiZhengStreet, Nanchang, 330006, China
| | - Rui Zhao
- Department of Clinical laboratory, The First Affiliated Hospital of Nanchang University of Nanchang University, Nanchang University, No.17, YongWaiZhengStreet, Nanchang, 330006, China.
| | - Yang Liu
- Department of Clinical laboratory, The First Affiliated Hospital of Nanchang University of Nanchang University, Nanchang University, No.17, YongWaiZhengStreet, Nanchang, 330006, China.
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Gao HB, Zhang J. [Analysis of prognostic factors in patients with COVID-19 infection]. Zhonghua Jie He He Hu Xi Za Zhi 2024; 47:296-300. [PMID: 38448186 DOI: 10.3760/cma.j.cn112147-20230822-00096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
The peak of COVID-19 infections in China has just passed, and symptomatic manifestations in patients vary widely, with a minority experiencing severe morbidity and mortality. Early detection of adverse outcomes remains critical for clinical governance and prognosis in COVID-19. This review synthesized both national and international studies relevant to the prognostic evaluation of COVID-19 and summarized the prognostic implications of demographics (age and gender), specific laboratory parameters, adjunctive examination results, complications, and comorbidities in COVID-19 patients. Pertinent laboratory parameters chiefly included markers of inflammation, coagulation function, and electrolytic balance. Adjunctive examinations included thoracic CT and electrocardiographic evaluations. Major complications and comorbid conditions included thrombotic episodes, co-infections, secondary infections, chronic pulmonary disorders, cardiovascular diseases, acute and chronic renal diseases, diabetes mellitus, and cerebrovascular accidents. Moreover, this article discussed how these elements affected the prognosis of patients with COVID-19. By summarizing the information, it aimed to inform preventive and therapeutic strategies against COVID-19 infections in the forthcoming period.
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Affiliation(s)
- H B Gao
- Department of Pulmonary and Critical Care Medicine, Beijing Tiantan Hospital, Capital Medical University, Beijing 100071, China
| | - J Zhang
- Department of Pulmonary and Critical Care Medicine, Beijing Tiantan Hospital, Capital Medical University, Beijing 100071, China
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Lin C, Wang SS, An R, Feng T, Huang SM. [Pulmonary co-infection with Nocardia otitidiscaviarum and Aspergillus: a case report]. Zhonghua Jie He He Hu Xi Za Zhi 2024; 47:237-240. [PMID: 38448174 DOI: 10.3760/cma.j.cn112147-20230714-00008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Nocardia is a rarely encountered opportunistic gram-positive bacterium that exhibits marked invasiveness and dissemination. Typically, acquired through trauma or inhalation, this pathogen primarily affects immunocompromised individuals and is a potentially life-threatening risk in severe cases. Nocardia otitidiscaviarum is a particularly rare subtype of Nocardia infection, and the occurrence of concurrent Aspergillus infection is extremely rare. In cases where both infections manifest concomitantly, rapid and accurate diagnosis is essential to facilitate the subsequent selection of appropriate anti-infective interventions. This paper reported the diagnostic and therapeutic experience in managing a case of pulmonary co-infection with Nocardia otitidiscaviarum and Aspergillus. The patient presented with an acute onset, rapid progression, and early manifestation of respiratory failure. The diagnostic process included respiratory pathogen culture and bronchoscopy, which was supplemented with targeted next-generation sequencing (tNGS). These comprehensive diagnostic modalities led to the identification of pulmonary co-infection with Nocardia otitidiscaviarum and Aspergillus. After adjustment of the antibiotic regimen, the patient's condition improved rapidly, culminating in a timely discharge.
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Affiliation(s)
- C Lin
- Department of Pulmonary and Critical Care Medicine, Shengli Oilfield Central Hospital, Dongying 257000, China
| | - S S Wang
- Department of Pulmonary and Critical Care Medicine, Shengli Oilfield Central Hospital, Dongying 257000, China
| | - R An
- Department of Pulmonary and Critical Care Medicine, Shengli Oilfield Central Hospital, Dongying 257000, China
| | - T Feng
- Department of Pulmonary and Critical Care Medicine, Shengli Oilfield Central Hospital, Dongying 257000, China
| | - S M Huang
- Department of Clinical Laboratory, Shengli Oilfield Central Hospital, Dongying 257000, China
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Lira E Silva MJ, Pacífico BB, Monteiro P. Clinical characteristics and outcomes of COVID-19/HIV co-infected patients at referral unit in Recife, Brazil. Med Clin (Barc) 2024; 162:250-251. [PMID: 37968172 DOI: 10.1016/j.medcli.2023.09.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/28/2023] [Accepted: 09/30/2023] [Indexed: 11/17/2023]
Affiliation(s)
- Maria Júnia Lira E Silva
- Departamento de Neurologia, Faculdade de Medicina, Universidade de Pernambuco (UPE), Recife, PE, Brazil.
| | | | - Polyana Monteiro
- Departamento de Infectologia, Faculdade de Medicina, Universidade de Pernambuco (UPE), Recife, PE, Brazil
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Agusto FB, Leite MCA, Owusu-Ansah F, Domfeh O, Hritonenko N, Chen-Charpentier B. Cacao sustainability: The case of cacao swollen-shoot virus co-infection. PLoS One 2024; 19:e0294579. [PMID: 38451893 PMCID: PMC10919592 DOI: 10.1371/journal.pone.0294579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 11/04/2023] [Indexed: 03/09/2024] Open
Abstract
The cacao swollen shoot virus disease (CSSVD) is among the most economically damaging diseases of cacao trees and accounts for almost 15-50% of harvest losses in Ghana. This virus is transmitted by several species of mealybugs (Pseudococcidae, Homoptera) when they feed on cacao plants. One of the mitigation strategies for CSSVD investigated at the Cocoa Research Institute of Ghana (CRIG) is the use of mild-strain cross-protection of cacao trees against the effects of severe strains. In this study, simple deterministic, delay, and stochastic ordinary differential equation-based models to describe the dynamic of the disease and spread of the virus are suggested. Model parameters are estimated using detailed empirical data from CRIG. The modeling outcomes demonstrate a remarkable resemblance between real and simulated dynamics. We have found that models with delay approximate the data better and this agrees with the knowledge that CSSVD epidemics develop slowly. Also, since there are large variations in the data, stochastic models lead to better results. We show that these models can be used to gain useful informative insights about the nature of disease spread.
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Affiliation(s)
- Folashade B. Agusto
- Department of Ecology and Evolutionary Biology, University of Kansas, Lawrence, Kansas, United States of America
| | - Maria C. A. Leite
- Department of Mathematics and Statistics, University of South Florida St Petersburg, St Petersburg, Florida, United States of America
| | - Frank Owusu-Ansah
- Social Science and Statistics Unit, Cocoa Research Institute of Ghana, New Tafo-Akim, Eastern Region, Ghana
| | - Owusu Domfeh
- Pathology Division, Cocoa Research Institute of Ghana, New Tafo-Akim, Eastern Region, Ghana
| | - Natali Hritonenko
- Department of Mathematics, Prairie View A&M University, Prairie View, Texas, United States of America
| | - Benito Chen-Charpentier
- Department of Mathematics, The University of Texas at Arlington, Arlington, Texas, United States of America
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Yuan L, Zhu Q, Chen Q, Lai LM, Liu P, Liu Y. The microbiological diagnostic performance of metagenomic next-generation sequencing in patients with infectious diseases. Lab Med 2024; 55:132-139. [PMID: 37289931 DOI: 10.1093/labmed/lmad046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023] Open
Abstract
OBJECTIVE Metagenomic next-generation sequencing (mNGS) can be used to detect pathogens in clinical infectious diseases through the sequencing analysis of microbial and host nucleic acids in clinical samples. This study aimed to assess the diagnostic performance of mNGS in patients with infections. METHODS In this study, 641 patients with infectious diseases were enrolled. These patients simultaneously underwent pathogen detection by both mNGS and microbial culture. Through statistical analysis, we judged the diagnostic performance of mNGS and microbial culture on different pathogens. RESULTS Among 641 patients, 276 cases of bacteria and 95 cases of fungi were detected by mNGS, whereas 108 cases of bacteria and 41 cases of fungi were detected by traditional cultures. Among all mixed infections, combined bacterial and viral infections were the highest (51%, 87/169), followed by combined bacterial with fungal infections (16.57%, 28/169) and mixed bacterial, fungal, and viral infections (13.61%, 23/169). Among all sample types, bronchoalveolar lavage fluid (BALF) samples had the highest positive rate (87.8%, 144/164), followed by sputum (85.4%, 76/89) and blood samples (61.2%, 158/258). For the culture method, sputum samples had the highest positive rate (47.2%, 42/89), followed by BALF (37.2%, 61/164). The positive rate of mNGS was 69.89% (448/641), which was significantly higher than that of traditional cultures (22.31% [143/641]) (P < .05). CONCLUSIONS Our results show that mNGS is an effective tool for the rapid diagnosis of infectious diseases. Compared with traditional detection methods, mNGS also showed obvious advantages in mixed infections and infections with uncommon pathogens.
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Affiliation(s)
- Lei Yuan
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Qing Zhu
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Qiang Chen
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Lan Min Lai
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Peng Liu
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Yang Liu
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
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Carpenter M, Kopanke J, Lee J, Rodgers C, Reed K, Sherman TJ, Graham B, Cohnstaedt LW, Wilson WC, Stenglein M, Mayo C. Evaluating Temperature Effects on Bluetongue Virus Serotype 10 and 17 Coinfection in Culicoides sonorensis. Int J Mol Sci 2024; 25:3063. [PMID: 38474308 PMCID: PMC10932384 DOI: 10.3390/ijms25053063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 03/02/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024] Open
Abstract
Bluetongue virus (BTV) is a segmented, double-stranded RNA virus transmitted by Culicoides midges that infects ruminants. As global temperatures increase and geographical ranges of midges expand, there is increased potential for BTV outbreaks from incursions of novel serotypes into endemic regions. However, an understanding of the effect of temperature on reassortment is lacking. The objectives of this study were to compare how temperature affected Culicoides survival, virogenesis, and reassortment in Culicoides sonorensis coinfected with two BTV serotypes. Midges were fed blood meals containing BTV-10, BTV-17, or BTV serotype 10 and 17 and maintained at 20 °C, 25 °C, or 30 °C. Midge survival was assessed, and pools of midges were collected every other day to evaluate virogenesis of BTV via qRT-PCR. Additional pools of coinfected midges were collected for BTV plaque isolation. The genotypes of plaques were determined using next-generation sequencing. Warmer temperatures impacted traits related to vector competence in offsetting ways: BTV replicated faster in midges at warmer temperatures, but midges did not survive as long. Overall, plaques with BTV-17 genotype dominated, but BTV-10 was detected in some plaques, suggesting parental strain fitness may play a role in reassortment outcomes. Temperature adds an important dimension to host-pathogen interactions with implications for transmission and evolution.
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Affiliation(s)
- Molly Carpenter
- Department of Microbiology, Immunology and Pathology, Colorado State University, 1601 Campus Delivery, Fort Collins, CO 80526, USA; (M.C.); (J.L.); (C.R.); (B.G.); (M.S.)
| | - Jennifer Kopanke
- Department of Comparative Medicine, Oregon Health & Science University, Portland, OR 97239, USA;
| | - Justin Lee
- Department of Microbiology, Immunology and Pathology, Colorado State University, 1601 Campus Delivery, Fort Collins, CO 80526, USA; (M.C.); (J.L.); (C.R.); (B.G.); (M.S.)
| | - Case Rodgers
- Department of Microbiology, Immunology and Pathology, Colorado State University, 1601 Campus Delivery, Fort Collins, CO 80526, USA; (M.C.); (J.L.); (C.R.); (B.G.); (M.S.)
| | - Kirsten Reed
- Wisconsin Veterinary Diagnostic Laboratory, University of Wisconsin-Madison, Madison, WI 53706, USA;
| | - Tyler J. Sherman
- Diagnostic Medicine Center, Colorado State University, 2450 Gillette Drive, Fort Collins, CO 80526, USA;
| | - Barbara Graham
- Department of Microbiology, Immunology and Pathology, Colorado State University, 1601 Campus Delivery, Fort Collins, CO 80526, USA; (M.C.); (J.L.); (C.R.); (B.G.); (M.S.)
| | - Lee W. Cohnstaedt
- Foreign Arthropod-Borne Animal Diseases Research Unit, The National Bio and Agro-Defense Facility, USDA Agricultural Research Service, P.O. Box 1807, Manhattan, KS 66505, USA; (L.W.C.); (W.C.W.)
| | - William C. Wilson
- Foreign Arthropod-Borne Animal Diseases Research Unit, The National Bio and Agro-Defense Facility, USDA Agricultural Research Service, P.O. Box 1807, Manhattan, KS 66505, USA; (L.W.C.); (W.C.W.)
| | - Mark Stenglein
- Department of Microbiology, Immunology and Pathology, Colorado State University, 1601 Campus Delivery, Fort Collins, CO 80526, USA; (M.C.); (J.L.); (C.R.); (B.G.); (M.S.)
| | - Christie Mayo
- Department of Microbiology, Immunology and Pathology, Colorado State University, 1601 Campus Delivery, Fort Collins, CO 80526, USA; (M.C.); (J.L.); (C.R.); (B.G.); (M.S.)
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Tuna Ecer D, Özel Y, Yapıcı O, Ünlü M. A Dangerous Relationship: A Case of Imported Plasmodium falciparum and Salmonella Typhi Coinfection. Turkiye Parazitol Derg 2024; 48:58-61. [PMID: 38449369 DOI: 10.4274/tpd.galenos.2024.71463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Malaria is a parasitic disease transmitted by the bite of female Anopheles mosquitoes. Although domestic malaria case notification in our country is not seen in World Health Organization records, cases originating from abroad are detected. Travelers to countries where malaria is endemic can become infected with the parasite. In our country, an average of 200-250 cases of malaria originating from abroad are reported every year. Approximately 75% of malaria cases of foreign origin detected in our country are P. falciparum malaria. Malaria and salmonellosis are infections especially seen in developing countries. Although malaria-Salmonella coinfection is rare, early diagnosis and treatment are important in terms of its high mortality rate. Preliminary information and initiation of chemoprophylaxis in travels to regions where the disease is endemic remain important in transmission. In this presentation, a case was examined following a business trip to Africa without any chemoprophylaxis, who applied to a local hospital upon symptoms and was diagnosed with P. falciparum and Salmonella Typhi coinfection but given incomplete treatment. After returning to our country, the patient applying to us with complaints of high fever, chills, nausea, diarrhea and abdominal pain and was discharged with ful recovery.
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Affiliation(s)
- Derya Tuna Ecer
- Balıkesir Üniversitesi Tıp Fakültesi, Enfeksiyon Hastalıkları Anabilim Dalı, Balıkesir, Türkiye
| | - Yener Özel
- Balıkesir Üniversitesi Tıp Fakültesi, Tıbbi Mikrobiyoloji Anabilim Dalı, Balıkesir, Türkiye
| | - Oktay Yapıcı
- Balıkesir Üniversitesi Tıp Fakültesi, Enfeksiyon Hastalıkları Anabilim Dalı, Balıkesir, Türkiye
| | - Mehmet Ünlü
- Balıkesir Üniversitesi Tıp Fakültesi, Tıbbi Mikrobiyoloji Anabilim Dalı, Balıkesir, Türkiye
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50
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Dobrzyńska M, Moniuszko-Malinowska A, Radziwon P, Pancewicz S, Gęgotek A, Skrzydlewska E. Tick-borne encephalitis virus transmitted singly and in duo with Borrelia burgdorferi sensu lato and Anaplasma phagocytophilum bacteria by ticks as pathogens modifying lipid metabolism in human blood. J Biomed Sci 2024; 31:28. [PMID: 38438941 PMCID: PMC10910801 DOI: 10.1186/s12929-024-01016-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 02/23/2024] [Indexed: 03/06/2024] Open
Abstract
BACKGROUND Ticks are vectors of various pathogens, including tick-borne encephalitis virus causing TBE and bacteria such as Borrelia burgdorferi sensu lato and Anaplasma phagocytophilum causing e.g. viral-bacterial co-infections (TBE + LB/HGA), which pose diagnostic and therapeutic problems. Since these infections are usually accompanied by inflammation and oxidative stress causing metabolic modifications, including phospholipids, the aim of the study was to assess the level of polyunsaturated fatty acids and their metabolism (ROS- and enzyme-dependent) products in the blood plasma of patients with TBE and TBE + LB/HGA before and after pharmacotherapy. METHODS The total antioxidant status was determined using 2,20-azino-bis-3-ethylbenzothiazolin-6-sulfonic acid. The phospholipid and free fatty acids were analysed by gas chromatography. Lipid peroxidation was estimated by measuring small molecular weight reactive aldehyde, malondialdehyde and neuroprostanes. The reactive aldehyde was determined using gas chromatography coupled with mass spectrometry. The activity of enzymes was examined spectrophotometrically. An analysis of endocannabinoids and eicosanoids was performed using a Shimadzu UPLC system coupled with an electrospray ionization source to a Shimadzu 8060 Triple Quadrupole system. Receptor expression was measured using an enzyme-linked immunosorbent assay (ELISA). RESULTS The reduced antioxidant status as a result of infection was accompanied by a decrease in the level of phospholipid arachidonic acid (AA) and docosahexaenoic acid (DHA) in TBE, an increase in DHA in co-infection and in free DHA in TBE with an increase in the level of lipid peroxidation products. The enhanced activity of enzymes metabolizing phospholipids and free PUFAs increased the level of endocannabinoids and eicosanoids, while decreased 15-PGJ2 and PGE2 was accompanied by activation of granulocyte receptors before pharmacotherapy and only tending to normalize after treatment. CONCLUSION Since classical pharmacotherapy does not prevent disorders of phospholipid metabolism, the need to support treatment with antioxidants may be suggested.
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Affiliation(s)
- Marta Dobrzyńska
- Department of Analytical Chemistry, Medical University of Bialystok, Mickiewicza 2D, 15-222, Bialystok, Poland
| | - Anna Moniuszko-Malinowska
- Department of Infectious Diseases and Neuroinfections, Medical University of Bialystok, Zurawia 14, 15-540, Bialystok, Poland.
| | - Piotr Radziwon
- Regional Centre for Transfusion Medicine, M. Sklodowskiej-Curie 23, 15-950, Bialystok, Poland
| | - Sławomir Pancewicz
- Department of Infectious Diseases and Neuroinfections, Medical University of Bialystok, Zurawia 14, 15-540, Bialystok, Poland
| | - Agnieszka Gęgotek
- Department of Analytical Chemistry, Medical University of Bialystok, Mickiewicza 2D, 15-222, Bialystok, Poland
| | - Elżbieta Skrzydlewska
- Department of Analytical Chemistry, Medical University of Bialystok, Mickiewicza 2D, 15-222, Bialystok, Poland
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