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Xu Y, Zheng Z, Sun R, Ye L, Chan EWC, Chen S. Epidemiological and genetic characterization of multidrug-resistant non-O1 and non-O139 Vibrio cholerae from food in southern China. Int J Food Microbiol 2024; 418:110734. [PMID: 38759293 DOI: 10.1016/j.ijfoodmicro.2024.110734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 04/28/2024] [Accepted: 05/02/2024] [Indexed: 05/19/2024]
Abstract
This study reports a comprehensive epidemiological and genetic analysis of V. cholerae strains, specifically non-O1/non-O139 serogroups, isolated from animal-derived food samples in Guangdong province from 2015 to 2019. A total of 21 V. cholerae strains were obtained, which exhibited high resistance rates for nalidixic acid (57.14 %, 12/21), ampicillin (33.33 %, 7/21), and ciprofloxacin (19.05 %, 4/21). The quinolone resistance-related gene, qnrVC, was prevalent in 80.95 % (17/21) of the isolates. Additionally, chromosomally mediated quinolone-resistance mutations, including mutations in GyrA at position 83 (S83I) and ParC at position 85 (S85L), were detected in 47.62 % of the isolates. The combination of target mutation and qnrVC genes was shown to mediate resistance or intermediate resistance to ciprofloxacin in V. cholerae. Furthermore, an IncC-type conjugative plasmid carrying thirteen antibiotic resistance genes, including genes conferring resistance to two clinically important antibiotics, cephalosporins and fluoroquinolones, was identified in the shrimp-derived strain Vc516. While none of our food isolates harbored the toxigenic CTX- and TCP-encoding genes, they did possess genes encoding toxins such as HlyA and Autoinducer-2. Notably, some V. cholerae strains from this study exhibited a close genetic relationship with clinical strains, suggesting their potential to cause human infections. Taken together, this study provides a comprehensive view of the epidemiological features and genetic basis of antimicrobial resistance and virulence potential of V. cholerae strains isolated from food in southern China, thereby advancing our understanding of this important pathogen.
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Affiliation(s)
- Yating Xu
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong; State Key Laboratory of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Zhiwei Zheng
- State Key Laboratory of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong; Shenzhen Key Laboratory for Food Biological Safety Control, Food Safety and Technology Research Centre, The Hong Kong PolyU Shenzhen Research Institute, Shenzhen, People's Republic of China
| | - Ruanyang Sun
- State Key Laboratory of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong; Shenzhen Key Laboratory for Food Biological Safety Control, Food Safety and Technology Research Centre, The Hong Kong PolyU Shenzhen Research Institute, Shenzhen, People's Republic of China
| | - Lianwei Ye
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong; State Key Laboratory of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Edward Wai-Chi Chan
- State Key Laboratory of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Sheng Chen
- State Key Laboratory of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong; Shenzhen Key Laboratory for Food Biological Safety Control, Food Safety and Technology Research Centre, The Hong Kong PolyU Shenzhen Research Institute, Shenzhen, People's Republic of China.
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Yu K, Huang Z, Xiao Y, Gao H, Bai X, Wang D. Global spread characteristics of CTX-M-type extended-spectrum β-lactamases: A genomic epidemiology analysis. Drug Resist Updat 2024; 73:101036. [PMID: 38183874 DOI: 10.1016/j.drup.2023.101036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 10/18/2023] [Accepted: 12/15/2023] [Indexed: 01/08/2024]
Abstract
BACKGROUND Extended-spectrum β-lactamases (ESBLs) producing bacteria have spread worldwide and become a global public health concern. Plasmid-mediated transfer of ESBLs is an important route for resistance acquisition. METHODS We collected 1345 complete sequences of plasmids containing CTX-Ms from public database. The global transmission pattern of plasmids and evolutionary dynamics of CTX-Ms have been inferred. We applied the pan-genome clustering based on plasmid genomes and evolution analysis to demonstrate the transmission events. FINDINGS Totally, 48 CTX-Ms genotypes and 186 incompatible types of plasmids were identified. The geographical distribution of CTX-Ms showed significant differences across countries and continents. CTX-M-14 and CTX-M-55 were found to be the dominant genotypes in Asia, while CTX-M-1 played a leading role in Europe. The plasmids can be divided into 12 lineages, some of which forming distinct geographical clusters in Asia and Europe, while others forming hybrid populations. The Inc types of plasmids are lineage-specific, with the CTX-M-1_IncI1-I (Alpha) and CTX-M-65_IncFII (pHN7A8)/R being the dominant patterns of cross-host and cross-regional transmission. The IncI-I (Alpha) plasmids with the highest number, were presumed to form communication groups in Europe-Asia and Asia-America-Oceania, showing the transmission model as global dissemination and regional microevolution. Meanwhile, the main kinetic elements of blaCTX-Ms showed genotypic preferences. ISEcpl and IS26 were most frequently involved in the transfer of CTX-M-14 and CTX-M-65, respectively. IS15 has become a crucial participant in mediating the dissemination of blaCTX-Ms. Interestingly, blaTEM and blaCTX-Ms often coexisted in the same transposable unit. Furthermore, antibiotic resistance genes associated with aminoglycosides, sulfonamides and cephalosporins showed a relatively high frequency of synergistic effects with CTX-Ms. CONCLUSIONS We recognized the dominant blaCTX-Ms and mainstream plasmids of different continents. The results of this study provide support for a more effective response to the risks associated with the evolution of blaCTX-Ms-bearing plasmids, and lay the foundation for genotype-specific epidemiological surveillance of resistance, which are of important public health implications.
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Affiliation(s)
- Keyi Yu
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC), Beijing 102206, China; Center for Human Pathogenic Culture Collection, China CDC, Beijing 102206, China
| | - Zhenzhou Huang
- Hangzhou Center for Disease Control and Prevention, Hangzhou, Zhejiang 310021, China
| | - Yue Xiao
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC), Beijing 102206, China; Center for Human Pathogenic Culture Collection, China CDC, Beijing 102206, China
| | - He Gao
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC), Beijing 102206, China; Center for Human Pathogenic Culture Collection, China CDC, Beijing 102206, China
| | - Xuemei Bai
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC), Beijing 102206, China; Center for Human Pathogenic Culture Collection, China CDC, Beijing 102206, China
| | - Duochun Wang
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC), Beijing 102206, China; Center for Human Pathogenic Culture Collection, China CDC, Beijing 102206, China.
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Virgilio E, Solmone M, Scardigno A, Fradiani P, Ceci D, Teggi A, Enea Di Domenico G, Cavallo I, Ensoli F, Borro M, Simmaco M, Santino I, Cavallini M. Hard-to-heal peripheral wounds infected with Corynebacterium striatum: a prospective study. J Wound Care 2023; 32:811-820. [PMID: 38060419 DOI: 10.12968/jowc.2023.32.12.811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
OBJECTIVE To investigate Corynebacterium striatum as a nosocomial pathogen infecting hard-to-heal peripheral wounds, such as skin wounds, soft tissue abscesses and osteomyelitis. As of 2023, the medical community were alerted against the risk of emerging systemic and central infections; on the other hand literature on peripheral cutaneous regions is still scarce. METHOD In this study, two groups of patients with similar lesions which were infected were compared: one group with the presence of the coryneform rod, the other without. RESULTS In total, Corynebacterium striatum was cultured from 62 patients and 131 samples. Corynebacterium striatum infection correlated well with the presence of: foot ulcer; venous leg ulcer; altered ambulation and/or altered foot loading; peripheral vascular and arterial disease; hospitalisation; malignancy; spinal cord injury; and recent administration of antibiotics (p<0.05 for all associations). Patients with Corynebacterium striatum had a lower overall survival rate compared to patients in the non-Corynebacterium striatum group (28.6 versus 31.6 months, respectively; p=0.0285). Multivariate analysis revealed that Corynebacterium striatum infection was an independent factor for poor prognosis (p<0.0001). CONCLUSION In view of the findings of our study, Corynebacterium striatum appears to be an important opportunistic pathogen infecting peripheral tissues and complicating wound healing. Given its numerous and worrying virulence factors (such as multidrug resistance and biofilm production), particular attention should be given to this pathogen by professional wound care providers in nosocomial and outpatient environments.
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Affiliation(s)
- Edoardo Virgilio
- Department of Medicine and Surgery, University of Parma, Parma, Italy
- Department of General Surgery, Parma University Hospital, Parma, Italy
| | - Mariacarmela Solmone
- Department of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, University Sapienza, Sant'Andrea Hospital, Rome, Italy
| | - Alessandro Scardigno
- Department of Neurosciences, Mental Health and Sensory Organs, Faculty of Medicine and Psychology, University Sapienza, Sant'Andrea Hospital, Rome, Italy
| | - Piera Fradiani
- Department of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, University Sapienza, Sant'Andrea Hospital, Rome, Italy
| | - Diego Ceci
- Department of Medical and Surgical Sciences and Translational Medicine, Faculty of Medicine and Psychology, University Sapienza, Sant'Andrea Hospital, Rome, Italy
| | - Antonella Teggi
- Department of Neurosciences, Mental Health and Sensory Organs, Faculty of Medicine and Psychology, University Sapienza, Sant'Andrea Hospital, Rome, Italy
| | - Gino Enea Di Domenico
- Department of Clinical Pathology and Microbiology, St. Gallicano Institute, Istituti di Ricovero e Cura a Carattere Scientifico Rome, Italy
| | - Ilaria Cavallo
- Department of Clinical Pathology and Microbiology, St. Gallicano Institute, Istituti di Ricovero e Cura a Carattere Scientifico Rome, Italy
| | - Fabrizio Ensoli
- Department of Clinical Pathology and Microbiology, St. Gallicano Institute, Istituti di Ricovero e Cura a Carattere Scientifico Rome, Italy
| | - Marina Borro
- Department of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, University Sapienza, Sant'Andrea Hospital, Rome, Italy
| | - Maurizio Simmaco
- Department of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, University Sapienza, Sant'Andrea Hospital, Rome, Italy
| | - Iolanda Santino
- Department of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, University Sapienza, Sant'Andrea Hospital, Rome, Italy
| | - Marco Cavallini
- Department of Medical and Surgical Sciences and Translational Medicine, Faculty of Medicine and Psychology, University Sapienza, Sant'Andrea Hospital, Rome, Italy
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Hetta HF, Rashed ZI, Ramadan YN, Al-Kadmy IMS, Kassem SM, Ata HS, Nageeb WM. Phage Therapy, a Salvage Treatment for Multidrug-Resistant Bacteria Causing Infective Endocarditis. Biomedicines 2023; 11:2860. [PMID: 37893232 PMCID: PMC10604041 DOI: 10.3390/biomedicines11102860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/11/2023] [Accepted: 10/20/2023] [Indexed: 10/29/2023] Open
Abstract
Infective endocarditis (IE) is defined as an infection of the endocardium, or inner surface of the heart, most frequently affecting the heart valves or implanted cardiac devices. Despite its rarity, it has a high rate of morbidity and mortality. IE generally occurs when bacteria, fungi, or other germs from another part of the body, such as the mouth, spread through the bloodstream and attach to damaged areas in the heart. The epidemiology of IE has changed as a consequence of aging and the usage of implantable cardiac devices and heart valves. The right therapeutic routes must be assessed to lower complication and fatality rates, so this requires early clinical suspicion and a fast diagnosis. It is urgently necessary to create new and efficient medicines to combat multidrug-resistant bacterial (MDR) infections because of the increasing threat of antibiotic resistance on a worldwide scale. MDR bacteria that cause IE can be treated using phages rather than antibiotics to combat MDR bacterial strains. This review will illustrate how phage therapy began and how it is considered a powerful potential candidate for the treatment of MDR bacteria that cause IE. Furthermore, it gives a brief about all reported clinical trials that demonstrated the promising effect of phage therapy in combating resistant bacterial strains that cause IE and how it will become a hope in future medicine.
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Affiliation(s)
- Helal F. Hetta
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut 71515, Egypt;
| | - Zainab I. Rashed
- Department of Microbiology and Immunology, Faculty of Pharmacy, Assiut University, Assiut 71515, Egypt; (Z.I.R.); (Y.N.R.)
| | - Yasmin N. Ramadan
- Department of Microbiology and Immunology, Faculty of Pharmacy, Assiut University, Assiut 71515, Egypt; (Z.I.R.); (Y.N.R.)
| | - Israa M. S. Al-Kadmy
- Branch of Biotechnology, Department of Biology, College of Science, Mustansiriyah University, Baghdad P.O. Box 10244, Iraq
| | - Soheir M. Kassem
- Department of Internal Medicine and Critical Care, Faculty of Medicine, Assuit University, Assiut 71515, Egypt;
| | - Hesham S. Ata
- Department of Pathology, College of Medicine, Qassim University, Buraydah 51452, Qassim, Saudi Arabia;
| | - Wedad M. Nageeb
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt;
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