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Li C, Zhou T, Zhang P, He J, Liu Y. Investigation of epidemiological and clinical characteristics of people infected with SARS-CoV-2 during the second pandemic of COVID-19 in Chengdu, China. Front Public Health 2024; 12:1394762. [PMID: 38756875 PMCID: PMC11097775 DOI: 10.3389/fpubh.2024.1394762] [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: 03/02/2024] [Accepted: 04/18/2024] [Indexed: 05/18/2024] Open
Abstract
Objective This study investigated the epidemiological and clinical characteristics of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infected patients during the second pandemic of COVID-19 (coronavirus disease of 2019) in Chengdu, China. Furthermore, the differences between first infection and re-infection cases were also compared and analyzed to provide evidence for better prevention and control of SARS-CoV-2 re-infection. Methods An anonymous questionnaire survey was conducted using an online platform (wjx.cn) between May 20, 2023 to September 12, 2023. Results This investigation included 62.94% females and 32.97% of them were 18-30 years old. Furthermore, 7.19-17.18% of the participants either did not receive vaccination at all or only received full vaccination, respectively. Moreover, 577 (57.64%) participants were exposed to cluster infection. The clinical manifestations of these patients were mainly mild to moderate; 78.18% of participants had a fever for 1-3 days, while 37.84% indicated a full course of disease for 4-6 days. In addition, 40.66% of the participants had re-infection and 72.97% indicated their first infection approximately five months before. The clinical symptoms of the first SARS-CoV-2 infection were moderate to severe, while re-infection indicated mild to moderate symptoms (the severity of symptoms other than diarrhea and conjunctival congestion had statistically significant differences) (p < 0.05). Moreover, 70.53 and 59.21% of first and re-infection cases had fever durations of 3-5 and 0-2 days, respectively. Whereas 47.91 and 46.40% of first and re-infection cases had a disease course of 7-9 and 4-6 days. Conclusion The SARS-CoV-2 infected individuals in Chengdu, China, during the second pandemic of COVID-19 had mild clinical symptoms and a short course of disease. Furthermore, compared with the first infection, re-infection cases had mild symptoms, low incidences of complications, short fever duration, and course of disease.
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Affiliation(s)
- Cheng Li
- Department of Infectious Diseases, The Third People’s Hospital of Chengdu, Chengdu, China
| | - Tao Zhou
- Department of Infectious Diseases, The Third People’s Hospital of Chengdu, Chengdu, China
| | - Peilin Zhang
- Department of Infectious Diseases, The Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Junning He
- Department of Infectious Diseases, The Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Yongfang Liu
- Department of Infectious Diseases, The Third People’s Hospital of Chengdu, Chengdu, China
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Shahriarirad S, Asmarian N, Shahriarirad R, Moghadami M, Askarian M, Hashemizadeh Fard Haghighi L, Javadi P, Sabetian G. High Post-Infection Protection after COVID-19 among Healthcare Workers: A Population-Level Observational Study. Iran J Med Sci 2024; 49:247-258. [PMID: 38680224 PMCID: PMC11053253 DOI: 10.30476/ijms.2023.97708.2951] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 04/04/2023] [Accepted: 05/04/2023] [Indexed: 05/01/2024]
Abstract
Background Even though a few years have passed since the coronavirus disease 2019 (COVID-19) outbreak, information regarding certain aspects of the disease, such as post-infection immunity, is still quite limited. This study aimed to evaluate post-infection protection and COVID-19 features among healthcare workers (HCWs), during three successive surges, as well as the rate of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) reinfection, reactivation, re-positivity, and severity. Methods This cross-sectional population-level observational study was conducted from 20 April 2020 to 18 February 2021. The study population included all HCWs in public or private hospitals in Fars Province, Southern Iran. The infection rate was computed as the number of individuals with positive polymerase chain reaction (PCR) tests divided by the total number of person-days at risk. The re-infection was evaluated after 90 days. Results A total of 30,546 PCR tests were performed among HCWs, of which 13,749 (61.94% of total HCWs) were positive. Considering the applied 90-day threshold, there were 44 (31.2%) cases of reactivation and relapse, and 97 (68.8% of infected and 1.81% of total HCWs) cases of reinfection among 141 (2.64%) diagnosed cases who experienced a second episode of COVID-19. There was no significant difference in symptoms (P=0.65) or the necessity for ICU admission (P=0.25). The estimated protection against repeated infection after a previous SARS-CoV-2 infection was 94.8% (95% CI=93.6-95.7). Conclusion SARS-CoV-2 re-positivity, relapse, and reinfection were rare in the HCW population. After the first episode of infection, an estimated 94.8% protection against recurring infections was achieved. A preprint version of this manuscript is available at DOI:10.21203/rs.3.rs-772662/v1 (https://www.researchsquare.com/article/rs-772662/v1).
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Affiliation(s)
- Sepehr Shahriarirad
- Thoracic and Vascular Surgery Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Student Research Committee, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Naeimehossadat Asmarian
- Anesthesiology and Critical Care Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Shahriarirad
- Thoracic and Vascular Surgery Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohsen Moghadami
- Clinical Microbiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehrdad Askarian
- Department of Community Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Parisa Javadi
- Department of Anesthesiology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Golnar Sabetian
- Trauma Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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de Anda-Jáuregui G, Gómez-Romero L, Cañas S, Campos-Romero A, Alcántar-Fernández J, Cedro-Tanda A. COVID-19 reinfections in Mexico City: implications for public health. Front Public Health 2024; 11:1321283. [PMID: 38419814 PMCID: PMC10899476 DOI: 10.3389/fpubh.2023.1321283] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 12/29/2023] [Indexed: 03/02/2024] Open
Abstract
Background Since its appearance, COVID-19 has immensely impacted our society. Public health measures, from the initial lockdowns to vaccination campaigns, have mitigated the crisis. However, SARS-CoV-2's persistence and evolving variants continue to pose global threats, increasing the risk of reinfections. Despite vaccination progress, understanding reinfections remains crucial for informed public health responses. Methods We collected available data on clinical and genomic information for SARS-CoV-2 samples from patients treated in Mexico City from 2020 epidemiological week 10 to 2023 epidemiological week 06 encompassing the whole public health emergency's period. To identify clinical data we utilized the SISVER (Respiratory Disease Epidemiological Surveillance System) database for SARS-CoV-2 patients who received medical attention in Mexico City. For genomic surveillance we analyzed genomic data previously uploaded to GISAID generated by Mexican institutions. We used these data sources to generate descriptors of case number, hospitalization, death and reinfection rates, and viral variant prevalence throughout the pandemic period. Findings The fraction of reinfected individuals in the COVID-19 infected population steadily increased as the pandemic progressed in Mexico City. Most reinfections occurred during the fifth wave (40%). This wave was characterized by the coexistence of multiple variants exceeding 80% prevalence; whereas all other waves showed a unique characteristic dominant variant (prevalence >95%). Shifts in symptom patient care type and severity were observed, 2.53% transitioned from hospitalized to ambulatory care type during reinfection and 0.597% showed the opposite behavior; also 7.23% showed a reduction in severity of symptoms and 6.05% displayed an increase in severity. Unvaccinated individuals accounted for the highest percentage of reinfections (41.6%), followed by vaccinated individuals (31.9%). Most reinfections occurred after the fourth wave, dominated by the Omicron variant; and after the vaccination campaign was already underway. Interpretation Our analysis suggests reduced infection severity in reinfections, evident through shifts in symptom severity and care patterns. Unvaccinated individuals accounted for most reinfections. While our study centers on Mexico City, its findings may hold implications for broader regions, contributing insights into reinfection dynamics.
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Affiliation(s)
- Guillermo de Anda-Jáuregui
- Instituto Nacional de Medicina Genómica, Mexico City, Mexico
- Investigadoras e Investigadoras por México, Consejo Nacional de Humanidades, Ciencias y Tecnologías, Mexico City, Mexico
- Centro de Ciencias de la Complejidad, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Laura Gómez-Romero
- Instituto Nacional de Medicina Genómica, Mexico City, Mexico
- Escuela de Medicina y Ciencias de la Salud, Tecnológico de Monterrey, Mexico City, Mexico
| | - Sofía Cañas
- Instituto Nacional de Medicina Genómica, Mexico City, Mexico
- Instituto Tecnológico de Estudios Superiores de Monterrey, Monterrey, Mexico
| | | | | | - Alberto Cedro-Tanda
- Núcleo B de Innovación en Medicina de Precisión, Instituto Nacional de Medicina Genómica, Mexico City, Mexico
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Wei J, Stoesser N, Matthews PC, Khera T, Gethings O, Diamond I, Studley R, Taylor N, Peto TEA, Walker AS, Pouwels KB, Eyre DW. Risk of SARS-CoV-2 reinfection during multiple Omicron variant waves in the UK general population. Nat Commun 2024; 15:1008. [PMID: 38307854 PMCID: PMC10837445 DOI: 10.1038/s41467-024-44973-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 01/10/2024] [Indexed: 02/04/2024] Open
Abstract
SARS-CoV-2 reinfections increased substantially after Omicron variants emerged. Large-scale community-based comparisons across multiple Omicron waves of reinfection characteristics, risk factors, and protection afforded by previous infection and vaccination, are limited. Here we studied ~45,000 reinfections from the UK's national COVID-19 Infection Survey and quantified the risk of reinfection in multiple waves, including those driven by BA.1, BA.2, BA.4/5, and BQ.1/CH.1.1/XBB.1.5 variants. Reinfections were associated with lower viral load and lower percentages of self-reporting symptoms compared with first infections. Across multiple Omicron waves, estimated protection against reinfection was significantly higher in those previously infected with more recent than earlier variants, even at the same time from previous infection. Estimated protection against Omicron reinfections decreased over time from the most recent infection if this was the previous or penultimate variant (generally within the preceding year). Those 14-180 days after receiving their most recent vaccination had a lower risk of reinfection than those >180 days from their most recent vaccination. Reinfection risk was independently higher in those aged 30-45 years, and with either low or high viral load in their most recent previous infection. Overall, the risk of Omicron reinfection is high, but with lower severity than first infections; both viral evolution and waning immunity are independently associated with reinfection.
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Affiliation(s)
- Jia Wei
- Nuffield Department of Medicine, University of Oxford, Oxford, UK.
- Big Data Institute, Nuffield Department of Population Health, University of Oxford, Oxford, UK.
| | - Nicole Stoesser
- Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Department of Infectious Diseases and Microbiology, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, UK
- The National Institute for Health Research Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance at the University of Oxford, Oxford, UK
- The National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Philippa C Matthews
- Nuffield Department of Medicine, University of Oxford, Oxford, UK
- The Francis Crick Institute, 1 Midland Road, London, UK
- Division of infection and immunity, University College London, London, UK
| | | | | | | | | | | | - Tim E A Peto
- Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Department of Infectious Diseases and Microbiology, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, UK
- The National Institute for Health Research Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance at the University of Oxford, Oxford, UK
- The National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
| | - A Sarah Walker
- Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Big Data Institute, Nuffield Department of Population Health, University of Oxford, Oxford, UK
- The National Institute for Health Research Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance at the University of Oxford, Oxford, UK
- MRC Clinical Trials Unit at UCL, UCL, London, UK
| | - Koen B Pouwels
- The National Institute for Health Research Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance at the University of Oxford, Oxford, UK
- Health Economics Research Centre, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - David W Eyre
- Big Data Institute, Nuffield Department of Population Health, University of Oxford, Oxford, UK
- Department of Infectious Diseases and Microbiology, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, UK
- The National Institute for Health Research Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance at the University of Oxford, Oxford, UK
- The National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
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Penetra SLS, Santos HFP, Resende PC, Bastos LS, da Silva MFB, Pina-Costa A, Lopes RS, Saboia-Vahia L, de Oliveira ACA, Pereira EC, Filho FM, Wakimoto MD, Calvet GA, Fuller TL, Whitworth J, Smith C, Nielsen-Saines K, Carvalho MS, Espíndola OM, Guaraldo L, Siqueira MM, Brasil P. SARS-CoV-2 Reinfection Cases in a Household-Based Prospective Cohort in Rio de Janeiro. J Infect Dis 2023; 228:1680-1689. [PMID: 37571849 PMCID: PMC11032242 DOI: 10.1093/infdis/jiad336] [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: 03/23/2023] [Revised: 08/02/2023] [Accepted: 08/09/2023] [Indexed: 08/13/2023] Open
Abstract
This was a household-based prospective cohort study conducted in Rio de Janeiro, in which people with laboratory-confirmed coronavirus disease 2019 (COVID-19) and their household contacts were followed from April 2020 through June 2022. Ninety-eight reinfections were identified, with 71 (72.5%) confirmed by genomic analyses and lineage definition in both infections. During the pre-Omicron period, 1 dose of any COVID-19 vaccine was associated with a reduced risk of reinfection, but during the Omicron period not even booster vaccines had this effect. Most reinfections were asymptomatic or milder in comparison with primary infections, a justification for continuing active surveillance to detect infections in vaccinated individuals. Our findings demonstrated that vaccination may not prevent infection or reinfection with severe acute respiratory syndrome coronavirus 2 (SARS CoV-2). Therefore we highlight the need to continuously update the antigenic target of SARS CoV-2 vaccines and administer booster doses to the population regularly, a strategy well established in the development of vaccines for influenza immunization programs.
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Affiliation(s)
- Stephanie L S Penetra
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Heloisa F P Santos
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Paola Cristina Resende
- Laboratory of Respiratory Viruses and Measles National Influenza Centre, Americas Regional Reference Lab for Measles and Rubella, Reference Laboratory for COVID-19 World Health Organization, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Leonardo Soares Bastos
- Scientific Computing Program, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Michele F B da Silva
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Anielle Pina-Costa
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Renata Serrano Lopes
- Laboratory of Respiratory Viruses and Measles National Influenza Centre, Americas Regional Reference Lab for Measles and Rubella, Reference Laboratory for COVID-19 World Health Organization, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Leonardo Saboia-Vahia
- Laboratory of Respiratory Viruses and Measles National Influenza Centre, Americas Regional Reference Lab for Measles and Rubella, Reference Laboratory for COVID-19 World Health Organization, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Any Caroline Alves de Oliveira
- Laboratory of Respiratory Viruses and Measles National Influenza Centre, Americas Regional Reference Lab for Measles and Rubella, Reference Laboratory for COVID-19 World Health Organization, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Elisa Cavalcante Pereira
- Laboratory of Respiratory Viruses and Measles National Influenza Centre, Americas Regional Reference Lab for Measles and Rubella, Reference Laboratory for COVID-19 World Health Organization, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fernando Medeiros Filho
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mayumi D Wakimoto
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Guilherme A Calvet
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Trevon L Fuller
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro, Brazil
- University of California, Los Angeles, Los Angeles, California, USA
| | - Jimmy Whitworth
- International Public Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Christopher Smith
- International Public Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan
| | | | - Marilia Sá Carvalho
- Scientific Computing Program, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Otávio M Espíndola
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Lusiele Guaraldo
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marilda M Siqueira
- Laboratory of Respiratory Viruses and Measles National Influenza Centre, Americas Regional Reference Lab for Measles and Rubella, Reference Laboratory for COVID-19 World Health Organization, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Patricia Brasil
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro, Brazil
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6
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Seth-Smith H, Vesenbeckh S, Egli A, Ott S. SARS-CoV-2 in an immunocompromised host: convalescent plasma therapy and viral evolution elucidated by whole genome sequencing. BMJ Case Rep 2023; 16:e255255. [PMID: 38087481 PMCID: PMC10728978 DOI: 10.1136/bcr-2023-255255] [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] [Accepted: 11/18/2023] [Indexed: 12/18/2023] Open
Abstract
The evolution of SARS-CoV-2 within immunocompromised hosts who fail to clear the virus over many months has been proposed as a route to the development of Variants of Concern (VoCs). We present a case of an immunocompromised male patient with a prolonged SARS-CoV-2 infection. During hospitalisation, 7 weeks after first diagnosis, his condition worsened to require continuous ventilation support. Resolution of symptoms was observed after convalescent plasma therapy. Whole genome sequencing of the virus showed Pango lineage B.1.221. Between the first sample and the second from bronchoalveolar lavage fluid 7 weeks later, we identified eight mutations, including minor variants, which could be used to estimate the chronology of mutations. This suggests an elevated mutation rate, in-host accumulation of mutations and further evidence for sources of VoCs. Prolonged SARS-CoV-2 infections in immunocompromised hosts increase the likelihood of hospital stays and morbidity, and also pose an increased risk to global public health.
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Affiliation(s)
- Helena Seth-Smith
- Institute of Medical Microbiology, University of Zurich, Zurich, Switzerland
- Division of Clinical Bacteriology and Mycology, University Hospital Basel, Basel, Switzerland
| | - Silvan Vesenbeckh
- Department of Pulmonology, University Hospital Zurich, Zurich, Switzerland
- Department of Pulmonology, Sankt Claraspital, Basel, Switzerland
| | - Adrian Egli
- Institute of Medical Microbiology, University of Zurich, Zurich, Switzerland
- Division of Clinical Bacteriology and Mycology, University Hospital Basel, Basel, Switzerland
| | - Sebastian Ott
- Department of Pulmonology, Sankt Claraspital, Basel, Switzerland
- Department of Pulmonology, Inselspital University Hospital Bern, Bern, Switzerland
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7
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Gómez-Gonzales W, Chihuantito-Abal LA, Gamarra-Bustillos C, Morón-Valenzuela J, Zavaleta-Oliver J, Gomez-Livias M, Vargas-Pancorbo L, Auqui-Canchari ME, Mejía-Zambrano H. Risk Factors Contributing to Reinfection by SARS-CoV-2: A Systematic Review. Adv Respir Med 2023; 91:560-570. [PMID: 38131876 PMCID: PMC10740414 DOI: 10.3390/arm91060041] [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: 11/04/2023] [Revised: 12/03/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023]
Abstract
This article aims to systematize the evidence regarding risk factors associated with COVID-19 reinfection. We conducted a systematic review of all the scientific publications available until August 2022. To ensure the inclusion of the most recent and relevant information, we searched the PubMed and Scopus databases. Thirty studies were reviewed, with a significant proportion being analytical observational case-control and cohort studies. Upon qualitative analysis of the available evidence, it appears that the probability of reinfection is higher for individuals who are not fully immunized when exposed to a new variant, females, those with pre-existing chronic diseases, individuals aged over 60, and those who have previously experienced severe symptoms of the disease or are immunocompromised. In conclusion, further analytical observational case-control studies are necessary to gain a better understanding of the risk factors associated with SARS-CoV-2 (COVID-19) reinfection.
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Affiliation(s)
- Walter Gómez-Gonzales
- Escuela de Medicina, Filial Ica, Universidad Privada San Juan Bautista, Ica 11001, Peru;
| | | | | | - Julia Morón-Valenzuela
- Escuela de Medicina, Filial Ica, Universidad Privada San Juan Bautista, Ica 11001, Peru;
| | - Jenny Zavaleta-Oliver
- Escuela de Medicina Humana, Universidad Privada San Juan Bautista, Lima 15067, Peru; (J.Z.-O.); (H.M.-Z.)
| | - Maria Gomez-Livias
- Escuela de Medicina, Universidad Norbert Wiener, Lima 15046, Peru; (C.G.-B.); (M.G.-L.)
| | | | | | - Henry Mejía-Zambrano
- Escuela de Medicina Humana, Universidad Privada San Juan Bautista, Lima 15067, Peru; (J.Z.-O.); (H.M.-Z.)
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8
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Kowalski EN, Wang X, Patel NJ, Kawano Y, Cook CE, Vanni KMM, Qian G, Bade KJ, Srivatsan S, Williams ZK, Wallace ZS, Sparks JA. Risk factors and outcomes for repeat COVID-19 infection among patients with systemic autoimmune rheumatic diseases: A case-control study. Semin Arthritis Rheum 2023; 63:152286. [PMID: 37913612 PMCID: PMC10842150 DOI: 10.1016/j.semarthrit.2023.152286] [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: 08/02/2023] [Revised: 10/12/2023] [Accepted: 10/20/2023] [Indexed: 11/03/2023]
Abstract
OBJECTIVE To investigate risk factors and outcomes of repeat COVID-19 infections among patients with systemic autoimmune rheumatic diseases (SARDs). METHODS We performed a case-control study investigating repeat COVID-19 infection within the Mass General Brigham Health Care System. We systematically identified all SARD patients with confirmed COVID-19 (15/Mar/2020 to 17/Oct/2022). Cases had confirmed repeat COVID-19 infections >60 days apart (index date: repeat COVID-19 date). Controls were matched to cases (up to 3:1) by calendar date of first infection and duration between first COVID-19 infection and index dates. We collected demographics, lifestyle, comorbidities, SARD features, and COVID-19 characteristics at initial infection and index date by medical record review. We used conditional logistic regression to identify associations with repeat COVID-19 infection, adjusting for potential confounders. We described the severity of repeat COVID-19 infection among cases. RESULTS Among 2203 SARD patients with COVID-19, we identified 76 cases with repeat COVID-19 infection (80.3 % female) and matched to 207 matched controls (77.8 % female) with no repeat infection. At first infection, cases were younger (mean 49.5 vs. 60.3 years, p < 0.0001), less likely to have hypertension (32.9 % vs. 45.9 %, p = 0.050), and less likely to have been hospitalized for COVID-19 (13.2 % vs. 24.6 %, p = 0.037) than controls. At index date, cases were more likely than controls to be rituximab users (18.4 % vs. 6.3 %, p = 0.0021). In the multivariable model, younger age (OR 0.67 per 10 years, 95 %CI 0.54-0.82), rituximab use vs. non-use (OR 3.38, 95 %CI 1.26-9.08), and methotrexate use vs. non-use (OR 2.24, 95 %CI 1.08-4.61) were each associated with repeat COVID-19 infection. Among those with repeat COVID-19 infection, 5/76 (6.6 %) were hospitalized and there were no deaths. CONCLUSION Younger age, rituximab, and methotrexate were each associated with repeat COVID-19 infection risk among patients with SARDs. Reassuringly, there were no deaths, and the hospitalization rate was low among those with repeat COVID-19 infection.
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Affiliation(s)
- Emily N Kowalski
- Division of Rheumatology, Inflammation, and Immunity, Brigham and Women's Hospital, 60 Fenwood Road, Boston, MA, 02115, USA
| | - Xiaosong Wang
- Division of Rheumatology, Inflammation, and Immunity, Brigham and Women's Hospital, 60 Fenwood Road, Boston, MA, 02115, USA
| | - Naomi J Patel
- Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Rheumatology Associates, 55 Fruit Street, Boston, MA, 02114, USA; Harvard Medical School, Boston, MA, USA
| | - Yumeko Kawano
- Division of Rheumatology, Inflammation, and Immunity, Brigham and Women's Hospital, 60 Fenwood Road, Boston, MA, 02115, USA; Harvard Medical School, Boston, MA, USA
| | - Claire E Cook
- Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Rheumatology Associates, 55 Fruit Street, Boston, MA, 02114, USA; Rheumatology and Allergy Clinical Epidemiology Research Center, Mongan Institute, Department of Medicine, Massachusetts General Hospital, 100 Cambridge Street, Suite 1600, Boston, MA, 02114, USA
| | - Kathleen M M Vanni
- Division of Rheumatology, Inflammation, and Immunity, Brigham and Women's Hospital, 60 Fenwood Road, Boston, MA, 02115, USA
| | - Grace Qian
- Division of Rheumatology, Inflammation, and Immunity, Brigham and Women's Hospital, 60 Fenwood Road, Boston, MA, 02115, USA
| | - Katarina J Bade
- Division of Rheumatology, Inflammation, and Immunity, Brigham and Women's Hospital, 60 Fenwood Road, Boston, MA, 02115, USA
| | - Shruthi Srivatsan
- Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Rheumatology Associates, 55 Fruit Street, Boston, MA, 02114, USA; Rheumatology and Allergy Clinical Epidemiology Research Center, Mongan Institute, Department of Medicine, Massachusetts General Hospital, 100 Cambridge Street, Suite 1600, Boston, MA, 02114, USA
| | - Zachary K Williams
- Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Rheumatology Associates, 55 Fruit Street, Boston, MA, 02114, USA; Rheumatology and Allergy Clinical Epidemiology Research Center, Mongan Institute, Department of Medicine, Massachusetts General Hospital, 100 Cambridge Street, Suite 1600, Boston, MA, 02114, USA
| | - Zachary S Wallace
- Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Rheumatology Associates, 55 Fruit Street, Boston, MA, 02114, USA; Harvard Medical School, Boston, MA, USA; Rheumatology and Allergy Clinical Epidemiology Research Center, Mongan Institute, Department of Medicine, Massachusetts General Hospital, 100 Cambridge Street, Suite 1600, Boston, MA, 02114, USA
| | - Jeffrey A Sparks
- Division of Rheumatology, Inflammation, and Immunity, Brigham and Women's Hospital, 60 Fenwood Road, Boston, MA, 02115, USA; Harvard Medical School, Boston, MA, USA.
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9
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Yang Z, Wong SL, Cha D, Wilfret D, Turnquist D, Plummer A, van Ingen E, Kearney BP. Characterization of Pharmacokinetics, Biotransformation and Elimination of Pomotrelvir Orally Administered in Healthy Male Adults Using Two [ 14C]-Labeled Microtracers with Separate Labeling Positions. Drug Metab Dispos 2023; 51:1607-1614. [PMID: 37684056 DOI: 10.1124/dmd.123.001439] [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: 06/26/2023] [Revised: 08/24/2023] [Accepted: 09/05/2023] [Indexed: 09/10/2023] Open
Abstract
Pomotrelvir is an orally bioavailable, target antiviral inhibitor of the main protease (Mpro) of coronaviruses, including severe acute respiratory syndrome coronavirus 2, the etiological agent of Coronavirus Disease 2019. The pharmacokinetics, metabolism and elimination of two [14C]-labeled microtracers of 5 µCi/700 mg pomotrelvir with separate labeling positions (isotopomers), [lactam carbonyl-14C-pomotelvir] and [benzene ring-U-14C-pomotrelvir], following a single oral dose in healthy adult males was evaluated in two separate cohorts. Pomotrelvir was rapidly absorbed and eliminated primarily through metabolism and subsequently excreted via urine and feces. There were no differences in pomotrelvir pharmacokinetics between the two cohorts. The mean total radioactive dose recovered was 93.8% (n = 8) in the lactam cohort (58% in urine and 36% in feces) and 94.2% (n = 8) in the benzene cohort (75% in urine and 19% in feces), with ≥80% of [14C] recovered within 96 hours after dosing. About 5% and 3% of the intact pomotrelvir was recovered in feces and urine, respectively. Eleven major metabolites were detected and characterized using liquid chromatography-accelerator mass spectrometry and liquid chromatography tandem mass spectrometry methods, with three and six different metabolites elucidated in the samples collected from lactam and benzene cohorts, respectively, and two metabolites observed in both cohorts. The major metabolism pathway of pomotrelvir is through hydrolysis of its peptide bonds followed by phase II conjugations. These results support that the application of two radiolabeled isotopomers provided a comprehensive metabolite profiling analysis and was a successful approach in identifying the major disposition pathways of pomotrelvir that has complex routes of metabolism. SIGNIFICANCE STATEMENT: An unconventional approach using two differentially labeled [14C] microtracers, [lactam carbonyl-14C-pomotrelvir] and [benzene ring-U-14C-pomotrelvir] evaluated the mass balance of orally administered pomotrelvir in healthy adult males in two separate cohorts. The radioactive dose recovered in excreta was about 94% for both cohorts. While the two isotopomers of the radiolabeled-pomotrelvir showed no major differences in pharmacokinetics overall, they allowed for differential detection of their radiolabeled metabolites and appropriate characterization of their plasma exposure and excretion in urine and feces.
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Affiliation(s)
| | | | - David Cha
- Pardes Biosciences, Carlsbad, California
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10
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Cunningham N, Hopkins S. Lessons identified for a future pandemic. J Antimicrob Chemother 2023; 78:ii43-ii49. [PMID: 37995355 PMCID: PMC10666982 DOI: 10.1093/jac/dkad310] [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] [Indexed: 11/25/2023] Open
Abstract
Pandemics are complex events requiring a coordinated, global response. The response to the pandemic exposed vulnerabilities in system preparedness. Lessons arising from the COVID-19 pandemic are characterized by four broad themes: (i) investment in public health and health infrastructure, (ii) countermeasures (medical and non-medical), (iii) risk communication and public health measures and (iv) investment in people and partnerships. Learning from the COVID-19 pandemic identifies an approach that focusses on capacities and capabilities that are pathogen agnostic, ensuring that we can respond to diverse emerging infectious disease threats will be essential. The lessons learned from previous and ongoing infectious disease outbreaks should be kept under constant review, in line with technological and scientific advances, to improve our ability to detect, mitigate and respond to new and emerging threats.
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Affiliation(s)
- Neil Cunningham
- Clinical and Public Health Group, United Kingdom Health Security Agency (UKHSA), London, UK
| | - Susan Hopkins
- Clinical and Public Health Group, United Kingdom Health Security Agency (UKHSA), London, UK
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11
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Wang Y, Zhao B, Zhang X, Zhang X, Gao F, Yuan X, Ren X, Li M, Liu D. How immune breakthroughs could slow disease progression and improve prognosis in COVID-19 patients: a retrospective study. Front Immunol 2023; 14:1246751. [PMID: 37936709 PMCID: PMC10627193 DOI: 10.3389/fimmu.2023.1246751] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 10/04/2023] [Indexed: 11/09/2023] Open
Abstract
Background Previous infections and vaccinations have produced preexisting immunity, which differs from primary infection in the organism immune response and may lead to different disease severities and prognoses when reinfected. Objectives The purpose of this retrospective cohort study was to investigate the impact of immune breakthroughs on disease progression and prognosis in patients with COVID-19. Methods A retrospective cohort study was conducted on 1513 COVID-19 patients in Chengdu Public Health Clinical Medical Center from January 2020 to November 2022. All patients were divided into the no immunity group (primary infection and unvaccinated, n=1102) and the immune breakthrough group (previous infection or vaccination, n=411). The immune breakthrough group was further divided into the natural immunity subgroup (n=73), the acquired immunity subgroup (n=322) and the mixed immunity subgroup (n=16). The differences in clinical and outcome data and T lymphocyte subsets and antibody levels between two groups or between three subgroups were compared by ANOVA, t test and chi-square test, and the relationship between T lymphocyte subsets and antibody levels and the disease progression and prognosis of COVID-19 patients was assessed by univariate analysis and logistic regression analysis. Results The total critical rate and the total mortality rate were 2.11% and 0.53%, respectively. The immune breakthrough rate was 27.16%. In the no immunity group, the critical rate and the mortality rate were all higher, and the coronavirus negative conversion time was longer than those in the immune breakthrough group. The differences in the critical rate and the coronavirus negative conversion time between the two groups were all statistically significant (3.72% vs. 0.24%, 14.17 vs. 11.90 days, all p<0.001). In addition, in the no immunity group, although lymphocyte counts and T subsets at admission were higher, all of them decreased consistently and significantly and were significantly lower than those in the immune breakthrough group at the same time from the first week to the fourth week after admission (all p<0.01). The total antibody levels and specific Immunoglobulin G (IgG) levels increased gradually and were always significantly lower than those in the immune breakthrough group at the same time from admission to the fourth week after admission (all p<0.001). Moreover, in the natural immunity subgroup, lymphocyte counts and T subsets at admission were the highest, and total antibody levels and specific IgG levels at admission were the lowest. Then, all of them decreased significantly and were the lowest among the three subgroups at the same time from admission to one month after admission (total antibody: from 546.07 to 158.89, IgG: from 6.00 to 3.95) (all p<0.001). Those in the mixed immunity subgroup were followed by those in the acquired immunity subgroup. While lymphocyte counts and T subsets in these two subgroups and total antibody levels (from 830.84 to 1008.21) and specific IgG levels (from 6.23 to 7.51) in the acquired immunity subgroup increased gradually, total antibody levels (from 1100.82 to 908.58) and specific IgG levels (from 7.14 to 6.58) in the mixed immunity subgroup decreased gradually. Furthermore, T lymphocyte subsets and antibody levels were negatively related to disease severity, prognosis and coronavirus negative conversion time. The total antibody, specific IgM and IgG levels showed good utility for predicting critical COVID-19 patients and dead COVID-19 patients. Conclusion Among patients with COVID-19 patients, immune breakthroughs resulting from previous infection or vaccination, could decelerate disease progression and enhance prognosis by expediting host cellular and humoral immunity to accelerate virus clearance, especially in individuals who have been vaccinated and previously infected. Clinical trial registry Chinese Clinical Trial Register ChiCTR2000034563.
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Affiliation(s)
- Yiting Wang
- School of Public Health, Chengdu Medical College, Chengdu, China
| | - Bennan Zhao
- The First Ward of Internal Medicine, Public Health Clinic Centre of Chengdu, Chengdu, China
| | - Xinyi Zhang
- Department of Endocrinology & Metabolism, Sichuan University West China Hospital, Chengdu, China
| | - Xia Zhang
- The First Ward of Internal Medicine, Public Health Clinic Centre of Chengdu, Chengdu, China
| | - Fengjiao Gao
- The First Ward of Internal Medicine, Public Health Clinic Centre of Chengdu, Chengdu, China
| | - Xiaoyan Yuan
- The First Ward of Internal Medicine, Public Health Clinic Centre of Chengdu, Chengdu, China
| | - Xiaoxia Ren
- The First Ward of Internal Medicine, Public Health Clinic Centre of Chengdu, Chengdu, China
| | - Maoquan Li
- School of Public Health, Chengdu Medical College, Chengdu, China
| | - Dafeng Liu
- The First Ward of Internal Medicine, Public Health Clinic Centre of Chengdu, Chengdu, China
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12
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Thakkar R, Agarwal DK, Ranaweera CB, Ishiguro S, Conda-Sheridan M, Gaudreault NN, Richt JA, Tamura M, Comer J. De novo design of a stapled peptide targeting SARS-CoV-2 spike protein receptor-binding domain. RSC Med Chem 2023; 14:1722-1733. [PMID: 37731704 PMCID: PMC10507807 DOI: 10.1039/d3md00222e] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 07/12/2023] [Indexed: 09/22/2023] Open
Abstract
Although effective vaccines have been developed against SARS-CoV-2, many regions in the world still have low rates of vaccination and new variants with mutations in the viral spike protein have reduced the effectiveness of most available vaccines and treatments. There is an urgent need for a drug to cure this disease and prevent infection. The SARS-CoV-2 virus enters the host cell through protein-protein interaction between the virus's spike protein and the host's angiotensin converting enzyme (ACE2). Using protein design software and molecular dynamics simulations, we have designed a 17-residue peptide (pep39), that binds to the spike protein receptor-binding domain (RBD) and blocks interaction of spike protein with ACE2. We have confirmed the binding activity of the designed peptide for the original spike protein and the delta variant spike protein using micro-cantilever and bio-layer interferometry (BLI) based methods. We also confirmed that pep39 strongly inhibits SARS-CoV-2 virus replication in Vero E6 cells. Taken together these data suggest that a newly designed spike protein RBD blocking peptide pep39 has a potential as a SARS-CoV-2 virus inhibitor.
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Affiliation(s)
- Ravindra Thakkar
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine Manhattan Kansas USA
| | - Dilip K Agarwal
- Department of Material Science and Engineering and NUANCE Center, Northwestern University Evanston Illinois USA
| | - Chathuranga B Ranaweera
- Department of Medical Laboratory Sciences, General Sir John Kotelawala Defense University Colombo Sri Lanka
| | - Susumu Ishiguro
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine Manhattan Kansas USA
| | - Martin Conda-Sheridan
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center Omaha Nebraska USA
| | - Natasha N Gaudreault
- Department of Diagnostic Medicine & Pathobiology, Kansas State University College of Veterinary Medicine Manhattan Kansas USA
| | - Juergen A Richt
- Department of Diagnostic Medicine & Pathobiology, Kansas State University College of Veterinary Medicine Manhattan Kansas USA
| | - Masaaki Tamura
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine Manhattan Kansas USA
| | - Jeffrey Comer
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine Manhattan Kansas USA
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13
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Sabba A, Pontoni G, Santangelo M, Rachedi N, D'Ercole M, Marseglia B, Fusaro M, Bignami EG, Fontana C. Remdesivir administration for SARS-CoV-2 pneumonia in ICU and non-ICU patients: outcome and posttreatment differences - the Italian Military Hospital experience. J Anesth Analg Crit Care 2023; 3:35. [PMID: 37715210 PMCID: PMC10504746 DOI: 10.1186/s44158-023-00114-6] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 08/16/2023] [Indexed: 09/17/2023]
Abstract
BACKGROUND Four-hundred forty-nine patients affected by Covid-19 were hospitalized at the Rome Military Hospital between March 2020 and July 2022. Depending on the severity of the disease, they were assigned either to the Functional Health Emergency Unit - if suffering from interstitial pneumonia with a clinical manifestation of dyspnea associated with peripheral oxygen saturation < 92%, and oxygen atmospheric pressure therapy - or to the intensive care unit - if the blood gas-lytic index P/F (ratio between partial pressure of arterial O2 and inspired fraction of O2) was below 150. This prospective observation and monocentric study aim to verify the outcome (healing/death) of early use of remdesivir in pneumonia patients. RESULTS The results highlight the importance of the adoption of remdesivir in the initial stages of infection to prevent the systemic spread and viral multiplication and, in the subsequent phase, a cytokine storm resulting in acute respiratory failure and multiorgan failure. The use of the drug in the most advanced stages of the disease is not associated with a real impact on patient outcomes. Therefore, there is a statistically significant correspondence between the early use of remdesivir in the treatment of SARS-CoV-2 disease - in addition to guidelines therapies - and a favorable clinical outcome. CONCLUSIONS This work shows therapeutic efficacy in the first 5 days of intravenous administration of remdesivir, following the loading dose. It is also necessary to underline the different behaviors of the drug when administered late in patients undergoing mechanical ventilation, compared to those who only needed low-flow oxygen therapy, whose share of recovery - decidedly relevant - reaches statistical significance.
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Affiliation(s)
- Antonio Sabba
- Rome Military Hospital-Policlinico Militare Di Roma, Rome, Italy.
| | | | - Maria Santangelo
- Rome Military Hospital-Policlinico Militare Di Roma, Rome, Italy
| | - Nadir Rachedi
- Rome Military Hospital-Policlinico Militare Di Roma, Rome, Italy
| | | | | | - Marcella Fusaro
- Rome Military Hospital-Policlinico Militare Di Roma, Rome, Italy
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14
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Zhou Y, Zhao X, Jiang Y, Lin DJ, Lu C, Wang Y, Le S, Li R, Yan J. A Mechanical Assay for the Quantification of Anti-RBD IgG Levels in Finger-Prick Whole Blood. ACS Sens 2023; 8:2986-2995. [PMID: 37582229 PMCID: PMC10464602 DOI: 10.1021/acssensors.3c00393] [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: 02/28/2023] [Accepted: 08/01/2023] [Indexed: 08/17/2023]
Abstract
A large portion of the global population has been vaccinated with various vaccines or infected with SARS-CoV-2, the virus that causes COVID-19. The resulting IgG antibodies that target the receptor binding domain (RBD) of SARS-CoV-2 play a vital role in reducing infection rates and severe disease outcomes. Different immune histories result in the production of anti-RBD IgG antibodies with different binding affinities to RBDs of different variants, and the levels of these antibodies decrease over time. Therefore, it is important to have a low-cost, rapid method for quantifying the levels of anti-RBD IgG in decentralized testing for large populations. In this study, we describe a 30 min assay that allows for the quantification of anti-RBD IgG levels in a single drop of finger-prick whole blood. This assay uses force-dependent dissociation of nonspecifically absorbed RBD-coated superparamagnetic microbeads to determine the density of specifically linked microbeads to a protein A-coated transparent surface through anti-RBD IgGs, which can be measured using a simple light microscope and a low-magnification lens. The titer of serially diluted anti-RBD IgGs can be determined without any additional sample processing steps. The limit of detection for this assay is 0.7 ± 0.1 ng/mL referenced to the CR3022 anti-RBD IgG. The limits of the technology and its potential to be further developed to meet the need for point-of-care monitoring of immune protection status are discussed.
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Affiliation(s)
- Yu Zhou
- Mechanobiology
Institute, National University of Singapore, 117411, Singapore
| | - Xiaodan Zhao
- Department
of Physics, National University of Singapore, 117542, Singapore
- Centre
for Bioimaging Sciences, National University
of Singapore, 117557, Singapore
| | - Yanqige Jiang
- Mechanobiology
Institute, National University of Singapore, 117411, Singapore
| | | | - Chen Lu
- Department
of Physics, National University of Singapore, 117542, Singapore
| | - Yinan Wang
- Department
of Physics, National University of Singapore, 117542, Singapore
| | - Shimin Le
- Department
of Physics, Xiamen University, Xiamen361005, P. R. China
| | - Rong Li
- Mechanobiology
Institute, National University of Singapore, 117411, Singapore
| | - Jie Yan
- Mechanobiology
Institute, National University of Singapore, 117411, Singapore
- Department
of Physics, National University of Singapore, 117542, Singapore
- Centre
for Bioimaging Sciences, National University
of Singapore, 117557, Singapore
- Joint
School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
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15
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Lind ML, Dorion M, Houde AJ, Lansing M, Lapidus S, Thomas R, Yildirim I, Omer SB, Schulz WL, Andrews JR, Hitchings MDT, Kennedy BS, Richeson RP, Cummings DAT, Ko AI. Evidence of leaky protection following COVID-19 vaccination and SARS-CoV-2 infection in an incarcerated population. Nat Commun 2023; 14:5055. [PMID: 37598213 PMCID: PMC10439918 DOI: 10.1038/s41467-023-40750-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 03/04/2023] [Accepted: 08/07/2023] [Indexed: 08/21/2023] Open
Abstract
Whether SARS-CoV-2 infection and COVID-19 vaccines confer exposure-dependent ("leaky") protection against infection remains unknown. We examined the effect of prior infection, vaccination, and hybrid immunity on infection risk among residents of Connecticut correctional facilities during periods of predominant Omicron and Delta transmission. Residents with cell, cellblock, and no documented exposure to SARS-CoV-2 infected residents were matched by facility and date. During the Omicron period, prior infection, vaccination, and hybrid immunity reduced the infection risk of residents without a documented exposure (HR: 0.36 [0.25-0.54]; 0.57 [0.42-0.78]; 0.24 [0.15-0.39]; respectively) and with cellblock exposures (0.61 [0.49-0.75]; 0.69 [0.58-0.83]; 0.41 [0.31-0.55]; respectively) but not with cell exposures (0.89 [0.58-1.35]; 0.96 [0.64-1.46]; 0.80 [0.46-1.39]; respectively). Associations were similar during the Delta period and when analyses were restricted to tested residents. Although associations may not have been thoroughly adjusted due to dataset limitations, the findings suggest that prior infection and vaccination may be leaky, highlighting the potential benefits of pairing vaccination with non-pharmaceutical interventions in crowded settings.
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Affiliation(s)
- Margaret L Lind
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA.
| | - Murilo Dorion
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA
| | - Amy J Houde
- Connecticut Department of Correction, Wethersfield, CT, USA
| | - Mary Lansing
- Connecticut Department of Correction, Wethersfield, CT, USA
| | - Sarah Lapidus
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA
| | - Russell Thomas
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA
| | - Inci Yildirim
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA
- Department of Pediatrics, Yale School of Medicine, New Haven, CT, USA
| | - Saad B Omer
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA
- Yale Institute for Global Health, Yale School of Public Health, New Haven, CT, USA
- UT Southwestern, School of Public Health, Dallas, TX, USA
| | - Wade L Schulz
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
- Department of Laboratory Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Jason R Andrews
- Division of Infectious Diseases and Geographic Medicine, Stanford University, Stanford, CA, USA
| | - Matt D T Hitchings
- Department of Biostatistics, College of Public Health & Health Professions, University of Florida, Gainesville, FL, USA
| | | | | | - Derek A T Cummings
- Department of Biology, University of Florida, Gainesville, FL, USA
- Emerging Pathogens Institute, University of Florida, Gainesville, FL, USA
| | - Albert I Ko
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA.
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, BA, Brazil.
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16
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Batistela CM, Correa DPF, Bueno ÁM, Piqueira JRC. SIRSi-vaccine dynamical model for the Covid-19 pandemic. ISA Trans 2023; 139:391-405. [PMID: 37217378 PMCID: PMC10186248 DOI: 10.1016/j.isatra.2023.05.008] [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: 09/29/2022] [Revised: 04/17/2023] [Accepted: 05/12/2023] [Indexed: 05/24/2023]
Abstract
Covid-19, caused by severe acute respiratory syndrome coronavirus 2, broke out as a pandemic during the beginning of 2020. The rapid spread of the disease prompted an unprecedented global response involving academic institutions, regulatory agencies, and industries. Vaccination and nonpharmaceutical interventions including social distancing have proven to be the most effective strategies to combat the pandemic. In this context, it is crucial to understand the dynamic behavior of the Covid-19 spread together with possible vaccination strategies. In this study, a susceptible-infected-removed-sick model with vaccination (SIRSi-vaccine) was proposed, accounting for the unreported yet infectious. The model considered the possibility of temporary immunity following infection or vaccination. Both situations contribute toward the spread of diseases. The transcritical bifurcation diagram of alternating and mutually exclusive stabilities for both disease-free and endemic equilibria were determined in the parameter space of vaccination rate and isolation index. The existing equilibrium conditions for both points were determined in terms of the epidemiological parameters of the model. The bifurcation diagram allowed us to estimate the maximum number of confirmed cases expected for each set of parameters. The model was fitted with data from São Paulo, the state capital of SP, Brazil, which describes the number of confirmed infected cases and the isolation index for the considered data window. Furthermore, simulation results demonstrate the possibility of periodic undamped oscillatory behavior of the susceptible population and the number of confirmed cases forced by the periodic small-amplitude oscillations in the isolation index. The main contributions of the proposed model are as follows: A minimum effort was required when vaccination was combined with social isolation, while additionally ensuring the existence of equilibrium points. The model could provide valuable information for policymakers, helping define disease prevention mitigation strategies that combine vaccination and non-pharmaceutical interventions, such as social distancing and the use of masks. In addition, the SIRSi-vaccine model facilitated the qualitative assessment of information regarding the unreported infected yet infectious cases, while considering temporary immunity, vaccination, and social isolation index.
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Affiliation(s)
| | - Diego P F Correa
- Federal University of ABC - UFABC - São Bernardo do Campo, SP, Brazil.
| | - Átila M Bueno
- Polytechnic School of University of São Paulo, São Paulo, SP, Brazil.
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17
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Li Z, Xiang T, Liang B, Liu J, Deng H, Yang X, Wang H, Feng X, Zelinskyy G, Trilling M, Sutter K, Lu M, Dittmer U, Wang B, Yang D, Zheng X, Liu J. SARS-CoV-2-specific T cell responses wane profoundly in convalescent individuals 10 months after primary infection. Virol Sin 2023; 38:606-619. [PMID: 37414153 PMCID: PMC10436107 DOI: 10.1016/j.virs.2023.06.011] [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: 08/04/2022] [Accepted: 06/28/2023] [Indexed: 07/08/2023] Open
Abstract
A key question in the coronavirus disease 2019 (COVID-19) pandemic is the duration of specific T cell responses against the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) post primary infection, which is difficult to address due to the large-scale COVID-19 vaccination and re-exposure to the virus. Here, we conducted an analysis of the long-term SARS-CoV-2-specific T cell responses in a unique cohort of convalescent individuals (CIs) that were among the first to be infected worldwide and without any possible antigen re-exposure since then. The magnitude and breadth of SARS-CoV-2-specific T cell responses correlated inversely with the time that had elapsed from disease onset and the age of those CIs. The mean magnitude of SARS-CoV-2-specific CD4 and CD8 T cell responses decreased about 82% and 76%, respectively, over the time period of ten months after infection. Accordingly, the longitudinal analysis also demonstrated that SARS-CoV-2-specific T cell responses waned significantly in 75% of CIs during the follow-up. Collectively, we provide a comprehensive characterization of the long-term memory T cell response in CIs, suggesting that robust SARS-CoV-2-specific T cell immunity post primary infection may be less durable than previously expected.
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Affiliation(s)
- Ziwei Li
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Tiandan Xiang
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Boyun Liang
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jing Liu
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Hui Deng
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xuecheng Yang
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Hua Wang
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xuemei Feng
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Gennadiy Zelinskyy
- Institute for Virology, University Hospital of Essen, University of Duisburg-Essen, Essen, 45147, Germany; Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Mirko Trilling
- Institute for Virology, University Hospital of Essen, University of Duisburg-Essen, Essen, 45147, Germany; Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Kathrin Sutter
- Institute for Virology, University Hospital of Essen, University of Duisburg-Essen, Essen, 45147, Germany; Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Mengji Lu
- Institute for Virology, University Hospital of Essen, University of Duisburg-Essen, Essen, 45147, Germany; Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Ulf Dittmer
- Institute for Virology, University Hospital of Essen, University of Duisburg-Essen, Essen, 45147, Germany; Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Baoju Wang
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Dongliang Yang
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Xin Zheng
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Jia Liu
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan, 430022, China.
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18
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Peñas-Utrilla D, Pérez-Lago L, Molero-Salinas A, Estévez A, Sanz A, Herranz M, Martínez-Laperche C, Andrés-Zayas C, Veintimilla C, Catalán P, Alonso R, Muñoz P, García de Viedma D. Systematic genomic analysis of SARS-CoV-2 co-infections throughout the pandemic and segregation of the strains involved. Genome Med 2023; 15:57. [PMID: 37488638 PMCID: PMC10367318 DOI: 10.1186/s13073-023-01198-z] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 05/30/2023] [Indexed: 07/26/2023] Open
Abstract
BACKGROUND SARS-CoV-2 recombinants involving the divergent Delta and Omicron lineages have been described, and one of them, "Kraken" (XBB.1.5), has recently been a matter of concern. Recombination requires the coexistence of two SARS-CoV-2 strains in the same individual. Only a limited number of studies have focused on the identification of co-infections and are restricted to co-infections involving the Delta/Omicron lineages. METHODS We performed a systematic identification of SARS-CoV-2 co-infections throughout the pandemic (7609 different patients sequenced), not biassed towards the involvement of highly divergent lineages. Through a comprehensive set of validations based on the distribution of allelic frequencies, phylogenetic consistency, re-sequencing, host genetic analysis and contextual epidemiological analysis, these co-infections were robustly assigned. RESULTS Fourteen (0.18%) co-infections with ≥ 8 heterozygous calls (8-85 HZs) were identified. Co-infections were identified throughout the pandemic and involved an equal proportion of strains from different lineages/sublineages (including pre-Alpha variants, Delta and Omicron) or strains from the same lineage. Co-infected cases were mainly unvaccinated, with mild or asymptomatic clinical presentation, and most were at risk of overexposure associated with the healthcare environment. Strain segregation enabled integration of sequences to clarify nosocomial outbreaks where analysis had been impaired due to co-infection. CONCLUSIONS Co-infection cases were identified throughout the pandemic, not just in the time periods when highly divergent lineages were co-circulating. Co-infections involving different lineages or strains from the same lineage were occurring in the same proportion. Most cases were mild, did not require medical assistance and were not vaccinated, and a large proportion were associated with the hospital environment.
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Affiliation(s)
- Daniel Peñas-Utrilla
- Servicio de Microbiología Clínica y Enfermedades Infecciosas, Hospital General Universitario Gregorio Marañón, C/Dr. Esquerdo 46, Madrid, 28007, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
- Escuela de Doctorado, Universidad de Alcalá, Plaza de San Diego, S/N, Alcalá de Henares, Madrid, 28801, Spain
| | - Laura Pérez-Lago
- Servicio de Microbiología Clínica y Enfermedades Infecciosas, Hospital General Universitario Gregorio Marañón, C/Dr. Esquerdo 46, Madrid, 28007, Spain.
- Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain.
| | - Andrea Molero-Salinas
- Servicio de Microbiología Clínica y Enfermedades Infecciosas, Hospital General Universitario Gregorio Marañón, C/Dr. Esquerdo 46, Madrid, 28007, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
| | - Agustín Estévez
- Servicio de Microbiología Clínica y Enfermedades Infecciosas, Hospital General Universitario Gregorio Marañón, C/Dr. Esquerdo 46, Madrid, 28007, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
| | - Amadeo Sanz
- Servicio de Microbiología Clínica y Enfermedades Infecciosas, Hospital General Universitario Gregorio Marañón, C/Dr. Esquerdo 46, Madrid, 28007, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
| | - Marta Herranz
- Servicio de Microbiología Clínica y Enfermedades Infecciosas, Hospital General Universitario Gregorio Marañón, C/Dr. Esquerdo 46, Madrid, 28007, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
| | - Carolina Martínez-Laperche
- Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
- Servicio de Oncohematología, Gregorio Marañón General University Hospital, Madrid, Spain
| | - Cristina Andrés-Zayas
- Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
- Genomics Unit, Gregorio Marañón General University Hospital, Madrid, Spain
| | - Cristina Veintimilla
- Servicio de Microbiología Clínica y Enfermedades Infecciosas, Hospital General Universitario Gregorio Marañón, C/Dr. Esquerdo 46, Madrid, 28007, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
| | - Pilar Catalán
- Servicio de Microbiología Clínica y Enfermedades Infecciosas, Hospital General Universitario Gregorio Marañón, C/Dr. Esquerdo 46, Madrid, 28007, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
| | - Roberto Alonso
- Servicio de Microbiología Clínica y Enfermedades Infecciosas, Hospital General Universitario Gregorio Marañón, C/Dr. Esquerdo 46, Madrid, 28007, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
| | - Patricia Muñoz
- Servicio de Microbiología Clínica y Enfermedades Infecciosas, Hospital General Universitario Gregorio Marañón, C/Dr. Esquerdo 46, Madrid, 28007, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
- CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain
- Departamento de Medicina, Universidad Complutense, Madrid, Spain
| | - Darío García de Viedma
- Servicio de Microbiología Clínica y Enfermedades Infecciosas, Hospital General Universitario Gregorio Marañón, C/Dr. Esquerdo 46, Madrid, 28007, Spain.
- Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain.
- CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain.
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19
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Cegolon L, Magnano G, Negro C, Larese Filon F. SARS-CoV-2 Reinfections in Health-Care Workers, 1 March 2020-31 January 2023. Viruses 2023; 15:1551. [PMID: 37515237 PMCID: PMC10384331 DOI: 10.3390/v15071551] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/05/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
Objective: To study SARS-CoV-2 reinfections in health-care workers (HCWs) of the University Health Agency Giuliano-Isontina (ASUGI), covering the provinces of Trieste and Gorizia (northeastern Italy) routinely screened for SARS-CoV-2 via nasopharyngeal swab. Design: Cohort study of HCWs (N = 8205) followed since the start of the pandemic (1 March 2020) through 31 January 2023. The risk of reinfection during the Omicron transmission period (after 30 November 2021) among HCWs previously infected by SARS-CoV-2 was estimated based on days since last dose of COVID-19 vaccine received, adjusting for age, sex, job task, workplace, number of doses of COVID-19 vaccines and number of swab tests performed. In the crude as well as adjusted incidence rate analysis, reinfections occurring 15+ days after a first dose of COVID-19 vaccine or 8+ days following a second or more dose were counted. Results: In a highly vaccinated population, during the entire study period (1 March 2020-31 January 2023) 5253 HCWs incurred at least one SARS-CoV-2 infection, 4262 HCWs were infected only once, and 1091 were reinfected. Reinfections almost entirely (99.1% = 1071/1091) occurred after 30 November 2021, peaking in July 2022 (N = 161). Six hundred eighty-three reinfections followed a pre-Omicron primary event against 408 reinfections following an Omicron event. Reinfections during the Omicron transmission period occurred a mean of 400 ± 220 days after primary SARS-CoV-2 infection; 512 ± 205 days following a pre-Omicron primary event, as opposed to 218 ± 74 days after an Omicron primary infection. Thirty-four hospitalizations were observed, all before the Omicron wave, following 18 (0.4%) primary SARS-CoV-2 infections and 16 (1.5%) reinfections. By excluding events occurring <15 days after a first dose or <8 days after a further dose of COVID-19 vaccine, 605 reinfections followed a pre-Omicron primary event (raw incidence = 1.4 × 1000 person-days) against 404 after a primary Omicron infection (raw incidence = 0.3 × 1000 person-days). Apart from nurse aids (slightly enhanced biological risk) and academic HCWs (remarkably lower risk with pre-Omicron primary events), the effect of occupation in terms of job task and workplace was marginal. Furthermore, whilst the risk of reinfection was lower in males and HCWs < 60 years old following a pre-Omicron primary infection, HCWs aged 30-50 were more likely to be infected after an Omicron primary event. Regardless of timeline of primary SARS-CoV-2 event, the risk of reinfection decreased with higher number of doses of COVID-19 vaccines, being lowest after the second booster. In particular, VE was 16% for one dose, 51% for two doses, 76% for the booster and 92% for the second booster with a pre-Omicron primary SARS-CoV-2 event. The latter figures increased to 72%, 59%, 74% and 93%, respectively, with Omicron primary infections. Conclusions: SARS-CoV-2 reinfections were frequent during the Omicron transmission period, though featured by mild or no symptoms. Whilst the impact of occupation on biological risk was relatively marginal, COVID-19 vaccination had the strongest protective effect against reinfection, with a 93% VE by second booster following an Omicron primary infection.
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Affiliation(s)
- Luca Cegolon
- Department of Medical, Surgical & Health Sciences, University of Trieste, 34129 Trieste, Italy
- Occupational Medicine Unit, University Health Agency Giuliano-Isontina (ASUGI), 34129 Trieste, Italy
| | - Greta Magnano
- Department of Medical, Surgical & Health Sciences, University of Trieste, 34129 Trieste, Italy
| | - Corrado Negro
- Department of Medical, Surgical & Health Sciences, University of Trieste, 34129 Trieste, Italy
- Occupational Medicine Unit, University Health Agency Giuliano-Isontina (ASUGI), 34129 Trieste, Italy
| | - Francesca Larese Filon
- Department of Medical, Surgical & Health Sciences, University of Trieste, 34129 Trieste, Italy
- Occupational Medicine Unit, University Health Agency Giuliano-Isontina (ASUGI), 34129 Trieste, Italy
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20
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Franco-Luiz APM, Fernandes NMGS, Silva TBDS, Bernardes WPDOS, Westin MR, Santos TG, Fernandes GDR, Simões TC, Silva EFE, Gava SG, Alves BM, de Carvalho Melo M, da Silva-Pereira RA, Alves PA, Fonseca CT. Longitudinal study of humoral immunity against SARS-CoV-2 of health professionals in Brazil: the impact of booster dose and reinfection on antibody dynamics. Front Immunol 2023; 14:1220600. [PMID: 37520570 PMCID: PMC10376701 DOI: 10.3389/fimmu.2023.1220600] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 06/26/2023] [Indexed: 08/01/2023] Open
Abstract
Introduction The pandemic caused by SARS-CoV-2 has had a major impact on health systems. Vaccines have been shown to be effective in improving the clinical outcome of COVID-19, but they are not able to fully prevent infection and reinfection, especially that caused by new variants. Methods Here, we tracked for 450 days the humoral immune response and reinfection in 52 healthcare workers from Brazil. Infection and reinfection were confirmed by RT-qPCR, while IgM and IgG antibody levels were monitored by rapid test. Results Of the 52 participants, 19 (36%) got reinfected during the follow-up period, all presenting mild symptoms. For all participants, IgM levels dropped sharply, with over 47% of them becoming seronegative by the 60th day. For IgG, 90% of the participants became seropositive within the first 30 days of follow-up. IgG antibodies also dropped after this period reaching the lowest level on day 270 (68.5 ± 72.3, p<0.0001). Booster dose and reinfection increased the levels of both antibodies, with the interaction between them resulting in an increase in IgG levels of 130.3 arbitrary units. Conclusions Overall, our data indicate that acquired humoral immunity declines over time and suggests that IgM and IgG antibody levels are not associated with the prevention of reinfection.
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Affiliation(s)
- Ana Paula Moreira Franco-Luiz
- Grupo de Pesquisa em Biologia e Imunologia de Doenças Infecciosas e Parasitárias, Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
| | - Nubia Monteiro Gonçalves Soares Fernandes
- Grupo de Pesquisa em Biologia e Imunologia de Doenças Infecciosas e Parasitárias, Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
| | - Thais Bárbara de Souza Silva
- Grupo de Imunologia de Doenças Virais, Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
| | | | - Mateus Rodrigues Westin
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Thais Garcia Santos
- Grupo de Pesquisa em Biologia e Imunologia de Doenças Infecciosas e Parasitárias, Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
| | - Gabriel da Rocha Fernandes
- Grupo de Pesquisa em Informática de Biossistemas, Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
| | - Taynãna César Simões
- Núcleo de Estudos em Saúde Pública e Envelhecimento, Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
| | - Eduardo Fernandes E. Silva
- Serviço de capacitação em métodos quantitativos -SAMeQ, Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
| | - Sandra Grossi Gava
- Grupo de Pesquisa em Helmintologia e Malacologia Médica, Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
| | - Breno Magalhães Alves
- Centro de Vigilância em Saúde e Segurança do Paciente, Hospital Metropolitano Doutor Célio de Castro, Belo Horizonte, Minas Gerais, Brazil
| | - Mariana de Carvalho Melo
- Serviço Especializado em Segurança e Medicina do Trabalho, Hospital Metropolitano Doutor Célio de Castro, Belo Horizonte, Minas Gerais, Brazil
| | - Rosiane A. da Silva-Pereira
- Grupo de Pesquisa em Biologia e Imunologia de Doenças Infecciosas e Parasitárias, Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
| | - Pedro Augusto Alves
- Grupo de Imunologia de Doenças Virais, Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
| | - Cristina Toscano Fonseca
- Grupo de Pesquisa em Biologia e Imunologia de Doenças Infecciosas e Parasitárias, Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
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21
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Amellal H, Assaid N, Charoute H, Akarid K, Maaroufi A, Ezzikouri S, Sarih M. Kinetics of specific anti-SARS-CoV-2 IgM, IgA, and IgG responses during the first 12 months after SARS-CoV-2 infection: A prospective longitudinal study. PLoS One 2023; 18:e0288557. [PMID: 37437051 DOI: 10.1371/journal.pone.0288557] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 06/29/2023] [Indexed: 07/14/2023] Open
Abstract
Coronavirus 2019 (COVID-19) is a global health threat. The kinetics of antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) need to be assessed, as the long-term duration of these immunoglobulins remains largely controversial. The aim of this study was to assess the longitudinal dynamics of anti-SARS-CoV-2 antibodies against the nucleocapsid (N) protein and the receptor-binding domain (RBD) of the spike protein up to one year in a cohort of 190 COVID-19 patients. Between March and September 2021, we enrolled patients from two regional hospitals in Casablanca, Morocco. Blood samples were collected and analyzed for antibody levels. We used the commercial Euroimmun ELISA for the determination of anti-N IgM, the Abbott Architect™ SARS-CoV-2 IgG test for the detection of anti-RBD IgG, and an in-house kit for the assay of anti-N IgG and anti-N IgA. IgM and IgA antibodies were assessed 2-5, 9-12, 17-20 and 32-37 days after symptom onset. IgG antibodies were also assessed 60, 90, 120 and 360 days after symptom onset. One-third of patients developed IgM (32%), while two-thirds developed IgA (61%). One month of symptom onset, most patients developed IgG, with 97% and 93% positivity for anti-RBD IgG and anti-N IgG, respectively. The anti-RBD IgG positivity rate remained high up to one year of follow-up. However, the anti-N IgG positivity rate decreased over time, with only 41% of patients testing positive after one year's follow-up. IgG levels were significantly higher in older people (over 50 years) than in other study participants. We also found that patients who had received two doses of ChAdOx1 nCoV-19 vaccine prior to infection had a lower IgM response than unvaccinated patients. This difference was statistically significant two weeks after the onset of symptoms. We present the first study in Africa to measure the kinetics of antibody response (IgA, IgM and IgG) to SARS-CoV-2 over one year. Most participants remained seropositive for anti-RBD IgG after one year but showed a significant decline in antibody titers.
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Affiliation(s)
- Houda Amellal
- Department of Parasitology and Vector-Borne Diseases, Institut Pasteur du Maroc, Casablanca, Morocco
- Aïn Chock Faculty of Sciences, Health and Environment Laboratory, Biochemistry, Biotechnology and Immunophysiopathology Research Team, Hassan II University of Casablanca, Casablanca, Morocco
| | - Najlaa Assaid
- Department of Parasitology and Vector-Borne Diseases, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hicham Charoute
- Institut Pasteur du Maroc, Research Unit of Epidemiology, Biostatistics and Bioinformatics, Casablanca, Morocco
| | - Khadija Akarid
- Aïn Chock Faculty of Sciences, Health and Environment Laboratory, Biochemistry, Biotechnology and Immunophysiopathology Research Team, Hassan II University of Casablanca, Casablanca, Morocco
| | - Abderrahmane Maaroufi
- Department of Parasitology and Vector-Borne Diseases, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Sayeh Ezzikouri
- Viral Hepatitis Laboratory, Institut Pasteur du Maroc, Virology Unit, Casablanca, Morocco
| | - M'hammed Sarih
- Department of Parasitology and Vector-Borne Diseases, Institut Pasteur du Maroc, Casablanca, Morocco
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22
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Acuña-Castillo C, Barrera-Avalos C, Bachelet VC, Milla LA, Inostroza-Molina A, Vidal M, Luraschi R, Vallejos-Vidal E, Mella-Torres A, Valdés D, Reyes-López FE, Imarai M, Rojas P, Sandino AM. An ecological study on reinfection rates using a large dataset of RT-qPCR tests for SARS-CoV-2 in Santiago of Chile. Front Public Health 2023; 11:1191377. [PMID: 37492136 PMCID: PMC10364051 DOI: 10.3389/fpubh.2023.1191377] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 06/05/2023] [Indexed: 07/27/2023] Open
Abstract
Introduction As the SARS-CoV-2 continues to evolve, new variants pose a significant threat by potentially overriding the immunity conferred by vaccination and natural infection. This scenario can lead to an upswing in reinfections, amplified baseline epidemic activity, and localized outbreaks. In various global regions, estimates of breakthrough cases associated with the currently circulating viral variants, such as Omicron, have been reported. Nonetheless, specific data on the reinfection rate in Chile still needs to be included. Methods Our study has focused on estimating COVID-19 reinfections per wave based on a sample of 578,670 RT-qPCR tests conducted at the University of Santiago of Chile (USACH) from April 2020 to July 2022, encompassing 345,997 individuals. Results The analysis reveals that the highest rate of reinfections transpired during the fourth and fifth COVID-19 waves, primarily driven by the Omicron variant. These findings hold despite 80% of the Chilean population receiving complete vaccination under the primary scheme and 60% receiving at least one booster dose. On average, the interval between initial infection and reinfection was found to be 372 days. Interestingly, reinfection incidence was higher in women aged between 30 and 55. Additionally, the viral load during the second infection episode was lower, likely attributed to Chile's high vaccination rate. Discussion This study demonstrates that the Omicron variant is behind Chile's highest number of reinfection cases, underscoring its potential for immune evasion. This vital epidemiological information contributes to developing and implementing effective public health policies.
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Affiliation(s)
- Claudio Acuña-Castillo
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Carlos Barrera-Avalos
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Vivienne C. Bachelet
- Escuela de Medicina, Facultad de Ciencias Médicas, Universidad de Santiago de Chile, Santiago, Chile
| | - Luis A. Milla
- Centro de Investigaciones Biomédicas y Aplicadas, Escuela de Medicina, Facultad de Ciencias Médicas, Universidad de Santiago de Chile, Santiago, Chile
| | - Ailén Inostroza-Molina
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Mabel Vidal
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Roberto Luraschi
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Eva Vallejos-Vidal
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
- Centro de Nanociencia y Nanotecnología CEDENNA, Universidad de Santiago de Chile, Santiago, Chile
| | - Andrea Mella-Torres
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Daniel Valdés
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Felipe E. Reyes-López
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Mónica Imarai
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Patricio Rojas
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Ana María Sandino
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
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23
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Baek YJ, Park G, Choi JY, Kim EJ, Kim BI, Gwack J, Jung JY. Within-Host Evolution of SARS-CoV-2 in a B-Cell Depleted Patient With Successful Treatment. J Korean Med Sci 2023; 38:e175. [PMID: 37272563 DOI: 10.3346/jkms.2023.38.e175] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 03/07/2023] [Indexed: 06/06/2023] Open
Abstract
Prolonged viral shedding of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in an immunocompromised host is a challenge as the treatment and infection control for chronic coronavirus disease 2019 infection is not well established and there is a potential risk of new variants emerging. A 48-year-old woman who underwent chemotherapy, including rituximab and steroid, had reactivation of SARS-CoV-2 68 days after the virus was first detected. She successfully recovered after receiving convalescent plasma and intravenous immunoglobulin. Genomic analysis demonstrated that viruses collected from the nasopharyngeal specimens at day 0 and day 68 had 18 different nucleotide mutations, implying within-host evolution after in-depth epidemiologic investigation.
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Affiliation(s)
- Yae Jee Baek
- Division of Infectious Diseases, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
| | - Gemma Park
- Korea Disease Control and Prevention Agency, Osong, Korea
| | - Jun Yong Choi
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Eun Jin Kim
- Korea Disease Control and Prevention Agency, Osong, Korea
| | - Bryan Inho Kim
- Korea Disease Control and Prevention Agency, Osong, Korea
| | - Jin Gwack
- Korea Disease Control and Prevention Agency, Osong, Korea.
| | - Ji Ye Jung
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
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Abas AH, Tallei TE, Fatimawali F, Celik I, Alhumaydhi FA, Emran TB, Dhama K, Rabaan AA, Garout MA, Halwani MA, Al Mutair A, Alhumaid S, Harapan H. 4’-fluorouridine as a potential COVID-19 oral drug?: a review. F1000Res 2023; 11:410. [DOI: 10.12688/f1000research.109701.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/01/2023] Open
Abstract
The available antiviral drugs against coronavirus disease 2019 (COVID-19) are limited. Oral drugs that can be prescribed to non-hospitalized patients are required. The 4′-fluoruridine, a nucleoside analog similar to remdesivir, is one of the promising candidates for COVID-19 oral therapy due to its ability to stall viral RdRp. Available data suggested that 4'-fluorouridine has antiviral activity against the respiratory syncytial virus, hepatitis C virus, lymphocytic choriomeningitis virus, and other RNA viruses, including SARS-CoV-2. In vivo study revealed that SARS-CoV-2 is highly susceptible to 4'-fluorouridine and was effective with a single daily dose versus molnupiravir administered twice daily. Although 4'-fluorouridine is considered as strong candidates, further studies are required to determine its efficacy in the patients and it’s genetic effects on humans. In this review, we the antiviral activity of 4′-fluorouridine is reviewed and compared it to other drugs currently in development. The current literature on 4′-fluorouridine's antiviral activity against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is compiled and discussed.
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Tavakoli A, Lotfi F, Lotfi M, Bayati M, Seif M, Salesi M, Emadi M, Keshavarz K, Delavari S. COVID-19 Reinfection Rate and Related Risk Factors in Fars Province, Iran: A Retrospective Cohort Study. Iran J Med Sci 2023; 48:302-312. [PMID: 37791328 PMCID: PMC10542930 DOI: 10.30476/ijms.2022.94615.2598] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 05/02/2022] [Accepted: 05/18/2022] [Indexed: 10/05/2023]
Abstract
Background Reinfection with Coronavirus Diseases 2019 (COVID-19) has raised remarkable public health concerns globally. Therefore, the present retrospective cohort study intended to investigate COVID-19 reinfection in registered patients of Fars province in Iran from February 2020 to April 2021. Methods The patients' data, including the COVID-19 infection, symptoms, comorbidities, and demographics, were collected using the Health Information Systems (HISs). The patients were divided into three groups in terms of the duration between the initial infection and reinfection, including 28-44, 45-89, and more than 90 days. Following the univariate analysis, logistic regression was used to investigate the factors effective on COVID-19 reinfection. Results A total of 213768 patients had a positive Polymerase Chain Reaction (PCR) test. The reinfection rate was 0.97% (2079 patients). Of these re-infected individuals, 14.9%, 18.5%, and 66.6% had their second positive test 28-45, 45-89, and ≥90 days later, respectively. The mean duration between the initial infection and reinfection was 130.56 days (29-370 days). The chance of reinfection was significantly higher in the youths (Odds Ratio (OR)=2.055; P<0.001), men (OR=1.283; P<0.001), urban population (OR=1.313; P<0.001), and healthcare providers (OR=4.453; P<0.001). The patients with chronic pulmonary diseases, chronic kidney diseases, and malignancy were 1.421 (P=0.036), 2.239 (P<0.001), and 3.437 (P<0.001) times, respectively, more likely prone to reinfection. Conclusion The results of this study showed that there is a higher risk of reinfection in several vulnerable groups including healthcare providers, young individuals, residents of urban areas, men, and individuals with underlying diseases.
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Affiliation(s)
- Ali Tavakoli
- Research Center for Traditional Medicine and History of Medicine, Department of Persian Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Farhad Lotfi
- Health Human Resources Research Center, Department of Health Economics, School of Health Management and Information Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
- Emergency Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehrzad Lotfi
- Medical Imaging Research Center, Department of Radiology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohsen Bayati
- Health Human Resources Research Center, Department of Health Economics, School of Health Management and Information Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mozhgan Seif
- Department of Epidemiology, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahmood Salesi
- Chemical Injuries Research Ccenter, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mehrnoosh Emadi
- Student Research Committee, School of Health Management and Information Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Khosro Keshavarz
- Health Human Resources Research Center, Department of Health Economics, School of Health Management and Information Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
- Emergency Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sajad Delavari
- Health Human Resources Research Center, Department of Health Economics, School of Health Management and Information Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
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Ukwishaka J, Ndayishimiye Y, Destine E, Danwang C, Kirakoya-Samadoulougou F. Global prevalence of coronavirus disease 2019 reinfection: a systematic review and meta-analysis. BMC Public Health 2023; 23:778. [PMID: 37118717 PMCID: PMC10140730 DOI: 10.1186/s12889-023-15626-7] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 04/07/2023] [Indexed: 04/30/2023] Open
Abstract
BACKGROUND In December 2019, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged with a high transmissibility rate and resulted in numerous negative impacts on global life. Preventive measures such as face masks, social distancing, and vaccination helped control the pandemic. Nonetheless, the emergence of SARS-CoV-2 variants, such as Omega and Delta, as well as coronavirus disease 2019 (COVID-19) reinfection, raise additional concerns. Therefore, this study aimed to determine the overall prevalence of reinfection on global and regional scales. METHODS A systematic search was conducted across three databases, PubMed, Scopus, and ProQuest Central, including all articles pertaining to COVID-19 reinfection without language restriction. After critical appraisal and qualitative synthesis of the identified relevant articles, a meta-analysis considering random effects was used to pool the studies. RESULTS We included 52 studies conducted between 2019 and 2022, with a total sample size of 3,623,655 patients. The overall prevalence of COVID-19 reinfection was 4.2% (95% confidence interval [CI]: 3.7-4.8%; n = 52), with high heterogeneity between studies. Africa had the highest prevalence of 4.7% (95% CI: 1.9-7.5%; n = 3), whereas Oceania and America had lower estimates of 0.3% (95% CI: 0.2-0.4%; n = 1) and 1% (95% CI: 0.8-1.3%; n = 7), respectively. The prevalence of reinfection in Europe and Asia was 1.2% (95% CI: 0.8-1.5%; n = 8) and 3.8% (95% CI: 3.4-4.3%; n = 43), respectively. Studies that used a combined type of specimen had the highest prevalence of 7.6% (95% CI: 5.8-9.5%; n = 15) compared with those that used oropharyngeal or nasopharyngeal swabs only that had lower estimates of 6.7% (95% CI: 4.8-8.5%; n = 8), and 3.4% (95% CI: 2.8-4.0%; n = 12) respectively. CONCLUSION COVID-19 reinfection occurs with varying prevalence worldwide, with the highest occurring in Africa. Therefore, preventive measures, including vaccination, should be emphasized to ensure control of the pandemic.
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Affiliation(s)
- Joyeuse Ukwishaka
- Maternal Child and Community Health Division, Rwanda Bio-Medical Center, Kigali, Rwanda.
- IntraHealth International, Kigali, Rwanda.
- Centre de Recherche en Epidémiologie, Biostatistique et Recherche Clinique, Ecole de Santé Publique, Université Libre de Bruxelles, Brussels, Belgium.
| | - Yves Ndayishimiye
- Centre de Recherche en Epidémiologie, Biostatistique et Recherche Clinique, Ecole de Santé Publique, Université Libre de Bruxelles, Brussels, Belgium
| | - Esmeralda Destine
- Centre de Recherche en Epidémiologie, Biostatistique et Recherche Clinique, Ecole de Santé Publique, Université Libre de Bruxelles, Brussels, Belgium
| | | | - Fati Kirakoya-Samadoulougou
- Centre de Recherche en Epidémiologie, Biostatistique et Recherche Clinique, Ecole de Santé Publique, Université Libre de Bruxelles, Brussels, Belgium
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Payen SH, Gorzalski A, Siao DD, Pandori M, Verma SC, Rossetto CC. Analysis of SARS-CoV-2 variants from patient specimens in Nevada from October 2020 to August 2021. Infect Genet Evol 2023; 111:105434. [PMID: 37059256 PMCID: PMC10098042 DOI: 10.1016/j.meegid.2023.105434] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 04/10/2023] [Accepted: 04/11/2023] [Indexed: 04/16/2023]
Abstract
In early 2020, the emergence and spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in the human population quickly developed into a global pandemic. SARS-CoV-2 is the etiological agent of coronavirus disease 2019 (COVID-19) which has a broad range of respiratory illnesses. As the virus circulates, it acquires nucleotide changes. These mutations are potentially due to the inherent differences in the selection pressures within the human population compared to the original zoonotic reservoir of SARS-CoV-2 and formerly naïve humans. The acquired mutations will most likely be neutral, but some may have implications for viral transmission, disease severity and resistance to therapies or vaccines. This is a follow-up study from our early report (Hartley et al. J Genet Genomics. 01202021;48(1):40-51) which detected a rare variant (nsp12, RdRp P323F) circulating within Nevada in mid 2020 at high frequency. The primary goals of the current study were to determine the phylogenetic relationship of the SARS-CoV-2 genomes within Nevada and to determine if there are any unusual variants within Nevada compared to the current database of SARS-CoV-2 sequences. Whole genome sequencing and analysis of SARS-CoV-2 from 425 positively identified nasopharyngeal/nasal swab specimens were performed from October 2020 to August 2021 to determine any variants that could result in potential escape from current therapeutics. Our analysis focused on nucleotide mutations that generated amino acid variations in the viral Spike (S) protein, Receptor binding domain (RBD) and the RNA-dependent RNA-polymerase (RdRp) complex. The data indicate that SARS-CoV-2 sequences from Nevada did not contain any unusual variants that had not been previously reported. Additionally, we did not detect the previously identified the RdRp P323F variant in any of the samples. This suggests that the rare variant we detected before was only able to circulate because of the stay-at-home orders and semi-isolation experience during the early months of the pandemic. IMPORTANCE: SARS-COV-2 continues to circulate in the human population. In this study, SARS-CoV-2 positive nasopharyngeal/nasal swab samples were used for whole genome sequencing to determine the phylogenetic relationship of SARS-CoV-2 sequences within Nevada from October 2020 to August 2021. The resulting data is being added to a continually growing database of SARS-CoV-2 sequences that will be important for understanding the transmission and evolution of the virus as it spreads around the globe.
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Affiliation(s)
- Shannon Harger Payen
- Department of Microbiology & Immunology; School of Medicine, University of Nevada, Reno
| | | | | | - Mark Pandori
- School of Medicine, University of Nevada, Reno; Nevada State Public Health Lab
| | - Subhash C Verma
- Department of Microbiology & Immunology; School of Medicine, University of Nevada, Reno
| | - Cyprian C Rossetto
- Department of Microbiology & Immunology; School of Medicine, University of Nevada, Reno.
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Isaia G, Valerio S, Oliva S, Brunetti E, Bo M. Atypical Course of SarsCov-2 Infection in a Patient with Multiple Myeloma Treated with Autologous Stem Cell Transplantation. Int J Hematol Oncol Stem Cell Res 2023; 17:128-131. [PMID: 37637765 PMCID: PMC10452944 DOI: 10.18502/ijhoscr.v17i2.12652] [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] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 01/15/2022] [Indexed: 08/29/2023] Open
Abstract
Covid-19 infection has more relevant consequences in frail and comorbid patients, but little is known about its course in patients with hematologic malignancies. In this report, we would like to present the case of a patient with multiple myeloma treated with recent autologous bone marrow stem cell transplantation and affected by Covid-19 pneumonia, presenting with a possible reinfection or an extremely long viral shedding.
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Affiliation(s)
- Gianluca Isaia
- Section of Geriatrics, Department of Medical Sciences, Università degli Studi di Torino, A.O.U. Città della Salute e della Scienza di Torino, Molinette, Corso Bramante 88, 10126, Turin, Italy
| | - Silvia Valerio
- Section of Geriatrics, Department of Medical Sciences, Università degli Studi di Torino, A.O.U. Città della Salute e della Scienza di Torino, Molinette, Corso Bramante 88, 10126, Turin, Italy
| | - Stefania Oliva
- Department of Oncology, Division of Hematology, A.O.U. Città della Salute e della Scienza di Torino, Torino, Italy
| | - Enrico Brunetti
- Section of Geriatrics, Department of Medical Sciences, Università degli Studi di Torino, A.O.U. Città della Salute e della Scienza di Torino, Molinette, Corso Bramante 88, 10126, Turin, Italy
| | - Mario Bo
- Section of Geriatrics, Department of Medical Sciences, Università degli Studi di Torino, A.O.U. Città della Salute e della Scienza di Torino, Molinette, Corso Bramante 88, 10126, Turin, Italy
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Cheng S, Pain CC, Guo YK, Arcucci R. Real-time updating of dynamic social networks for COVID-19 vaccination strategies. J Ambient Intell Humaniz Comput 2023:1-14. [PMID: 37360777 PMCID: PMC10062280 DOI: 10.1007/s12652-023-04589-7] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 03/05/2023] [Indexed: 06/28/2023]
Abstract
Vaccination strategy is crucial in fighting the COVID-19 pandemic. Since the supply is still limited in many countries, contact network-based interventions can be most powerful to set an efficient strategy by identifying high-risk individuals or communities. However, due to the high dimension, only partial and noisy network information can be available in practice, especially for dynamic systems where contact networks are highly time-variant. Furthermore, the numerous mutations of SARS-CoV-2 have a significant impact on the infectious probability, requiring real-time network updating algorithms. In this study, we propose a sequential network updating approach based on data assimilation techniques to combine different sources of temporal information. We then prioritise the individuals with high-degree or high-centrality, obtained from assimilated networks, for vaccination. The assimilation-based approach is compared with the standard method (based on partially observed networks) and a random selection strategy in terms of vaccination effectiveness in a SIR model. The numerical comparison is first carried out using real-world face-to-face dynamic networks collected in a high school, followed by sequential multi-layer networks generated relying on the Barabasi-Albert model emulating large-scale social networks with several communities.
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Affiliation(s)
- Sibo Cheng
- Data Science Instituite, Department of Computing, Imperial College London, London, UK
| | - Christopher C. Pain
- Department of Earth Science and Engineering, Imperial College London, London, UK
| | - Yi-Ke Guo
- Data Science Instituite, Department of Computing, Imperial College London, London, UK
| | - Rossella Arcucci
- Data Science Instituite, Department of Computing, Imperial College London, London, UK
- Department of Earth Science and Engineering, Imperial College London, London, UK
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Facciuolo A, Van Kessel J, Kroeker A, Liao M, Lew JM, Falzarano D, Kelvin AA, Gerdts V, Napper S. Longitudinal analysis of SARS-CoV-2 reinfection reveals distinct kinetics and emergence of cross-neutralizing antibodies to variants of concern. Front Microbiol 2023; 14:1148255. [PMID: 37065160 PMCID: PMC10090301 DOI: 10.3389/fmicb.2023.1148255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
The ongoing evolution of SARS-CoV-2 continues to raise new questions regarding the duration of immunity to reinfection with emerging variants. To address these knowledge gaps, controlled investigations in established animal models are needed to assess duration of immunity induced by each SARS-CoV-2 lineage and precisely evaluate the extent of cross-reactivity and cross-protection afforded. Using the Syrian hamster model, we specifically investigated duration of infection acquired immunity to SARS-CoV-2 ancestral Wuhan strain over 12 months. Plasma spike- and RBD-specific IgG titers against ancestral SARS-CoV-2 peaked at 4 months post-infection and showed a modest decline by 12 months. Similar kinetics were observed with plasma virus neutralizing antibody titers which peaked at 2 months post-infection and showed a modest decline by 12 months. Reinfection with ancestral SARS-CoV-2 at regular intervals demonstrated that prior infection provides long-lasting immunity as hamsters were protected against severe disease when rechallenged at 2, 4, 6, and 12 months after primary infection, and this coincided with the induction of high virus neutralizing antibody titers. Cross-neutralizing antibody titers against the B.1.617.2 variant (Delta) progressively waned in blood over 12 months, however, re-infection boosted these titers to levels equivalent to ancestral SARS-CoV-2. Conversely, cross-neutralizing antibodies to the BA.1 variant (Omicron) were virtually undetectable at all time-points after primary infection and were only detected following reinfection at 6 and 12 months. Collectively, these data demonstrate that infection with ancestral SARS-CoV-2 strains generates antibody responses that continue to evolve long after resolution of infection with distinct kinetics and emergence of cross-reactive and cross-neutralizing antibodies to Delta and Omicron variants and their specific spike antigens.
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Affiliation(s)
- Antonio Facciuolo
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, SK, Canada
- Department of Veterinary Microbiology, University of Saskatchewan, Saskatoon, SK, Canada
- *Correspondence: Antonio Facciuolo,
| | - Jill Van Kessel
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, SK, Canada
| | - Andrea Kroeker
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, SK, Canada
| | - Mingmin Liao
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, SK, Canada
| | - Jocelyne M. Lew
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, SK, Canada
| | - Darryl Falzarano
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, SK, Canada
- Department of Veterinary Microbiology, University of Saskatchewan, Saskatoon, SK, Canada
| | - Alyson A. Kelvin
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, SK, Canada
- Department of Biochemistry, Microbiology and Immunology, University of Saskatchewan, Saskatoon, SK, Canada
| | - Volker Gerdts
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, SK, Canada
- Department of Veterinary Microbiology, University of Saskatchewan, Saskatoon, SK, Canada
| | - Scott Napper
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, SK, Canada
- Department of Biochemistry, Microbiology and Immunology, University of Saskatchewan, Saskatoon, SK, Canada
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Reddy DH, Kapoor R, Rai P, Atam V, Khan F, Pandey S, Malhotra HS, Gautam M, Bharadwaj N. Reinfection of COVID-19 among doctors at a tertiary care centre in Northern India: A report from a resource-limited setting. Lung India 2023; 40:123-127. [PMID: 37006095 PMCID: PMC10174654 DOI: 10.4103/lungindia.lungindia_261_22] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 07/24/2022] [Accepted: 11/13/2022] [Indexed: 03/05/2023] Open
Abstract
Background and Aims There is an increasing recognition of reinfection in coronavirus disease 2019 (COVID-19). We studied the reinfection of COVID-19 disease among doctors at a tertiary care centre in Northern India. Methods All COVID-19 patients readmitted for COVID-19 disease after any duration with at least a positive Real time- polymerase chain reaction (RT-PCR) for severe acute respiratory syndrome coronavirus 2 were included. Their clinical profile, vaccination status, outcome and Centre for disease control (CDC), Atlanta, USA reinfection criteria screening were recorded. Results A total of 57 (0.53%) doctors were identified and 56 of them satisfied the CDC criteria. It included 13 (20.3%) females and 89.3% of cases were from clinical specialities; 98.2% of individuals had the first infection in 2020 and mean duration between 2 infections was 156.29 ± 76.02 (35-298) days. Duration between two episodes of the disease with more than 90 days apart was in 80.3% cases. One (1.8%) patient developed severe disease and two (3.6%) cases were of moderate severity. Symptoms were similar in both infections except significantly higher number of extra-respiratory complaints (2.2% vs. 9.1%). There were 37.5% cases who had received first dose of vaccination of any duration at the time of second infection. Nine (16.1%) and four (7.1%) patients with more than 4 weeks after the first and second dose of vaccination developed the second infection, respectively. Conclusion Majority of reinfection were symptomatic and developed after 90 days and so majority followed CDC criteria. Breakthrough infections among vaccinated healthcare worker are real, and with sustained exposure to the virus, they should continue to use precaution including hand hygiene and mask in order to prevent reinfection.
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Affiliation(s)
- D. Himanshu Reddy
- Department of Internal Medicine, KGMU, Lucknow, Uttar Pradesh, India
| | - Rohan Kapoor
- Department of General Surgery, KGMU, Lucknow, Uttar Pradesh, India
| | - Priyanka Rai
- Department of Pathology, MVASMC, Basti, Uttar Pradesh, India
| | - Virendra Atam
- Department of Internal Medicine, KGMU, Lucknow, Uttar Pradesh, India
| | - Farman Khan
- Department of Internal Medicine, KGMU, Lucknow, Uttar Pradesh, India
| | - Saurabh Pandey
- Consultant Physician and Adult Infectious Diseases Expert, Unit of Medicine and Infectious Diseases, PMC Hospital, Basti, Uttar Pradesh, India
| | | | - Medhavi Gautam
- Department of Internal Medicine, KGMU, Lucknow, Uttar Pradesh, India
| | - Nitin Bharadwaj
- Department of Hospital Administration, KGMU, Lucknow, Uttar Pradesh, India
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Mullins MO, Smith M, Maboreke H, Nel AJM, Ntusi NAB, Burgers WA, Blackburn JM. Epitope Coverage of Anti-SARS-CoV-2 Nucleocapsid IgA and IgG Antibodies Correlates with Protection against Re-Infection by New Variants in Subsequent Waves of the COVID-19 Pandemic. Viruses 2023; 15. [PMID: 36851798 DOI: 10.3390/v15020584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/10/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
The COVID-19 pandemic continues to affect individuals across the globe, with some individuals experiencing more severe disease than others. The relatively high frequency of re-infections and breakthrough infections observed with SARS-CoV-2 highlights the importance of extending our understanding of immunity to COVID-19. Here, we aim to shed light on the importance of antibody titres and epitope utilization in protection from re-infection. Health care workers are highly exposed to SARS-CoV-2 and are therefore also more likely to become re-infected. We utilized quantitative, multi-antigen, multi-epitope SARS-CoV-2 protein microarrays to measure IgG and IgA titres against various domains of the nucleocapsid and spike proteins. Potential re-infections in a large, diverse health care worker cohort (N = 300) during the second wave of the pandemic were identified by assessing the IgG anti-N titres before and after the second wave. We assessed epitope coverage and antibody titres between the 'single infection' and 're-infection' groups. Clear differences were observed in the breadth of the anti-N response before the second wave, with the epitope coverage for both IgG (p = 0.019) and IgA (p = 0.015) being significantly increased in those who did not become re-infected compared to those who did. Additionally, the IgG anti-N (p = 0.004) and anti-S titres (p = 0.018) were significantly higher in those not re-infected. These results highlight the importance of the breadth of elicited antibody epitope coverage following natural infection in protection from re-infection and disease in the COVID-19 pandemic.
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Celikgil A, Massimi AB, Nakouzi A, Herrera NG, Morano NC, Lee JH, Yoon HA, Garforth SJ, Almo SC. SARS-CoV-2 multi-antigen protein microarray for detailed characterization of antibody responses in COVID-19 patients. PLoS One 2023; 18:e0276829. [PMID: 36757919 PMCID: PMC9910743 DOI: 10.1371/journal.pone.0276829] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 01/13/2023] [Indexed: 02/10/2023] Open
Abstract
Antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) target multiple epitopes on different domains of the spike protein, and other SARS-CoV-2 proteins. We developed a SARS-CoV-2 multi-antigen protein microarray with the nucleocapsid, spike and its domains (S1, S2), and variants with single (D614G, E484K, N501Y) or double substitutions (N501Y/Deletion69/70), allowing a more detailed high-throughput analysis of the antibody repertoire following infection. The assay was demonstrated to be reliable and comparable to ELISA. We analyzed antibodies from 18 COVID-19 patients and 12 recovered convalescent donors. The S IgG level was higher than N IgG in most of the COVID-19 patients, and the receptor-binding domain of S1 showed high reactivity, but no antibodies were detected against the heptad repeat domain 2 of S2. Furthermore, antibodies were detected against S variants with single and double substitutions in COVID-19 patients who were infected with SARS-CoV-2 early in the pandemic. Here we demonstrated that the SARS-CoV-2 multi-antigen protein microarray is a powerful tool for detailed characterization of antibody responses, with potential utility in understanding the disease progress and assessing current vaccines and therapies against evolving SARS-CoV-2.
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Affiliation(s)
- Alev Celikgil
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - Aldo B. Massimi
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - Antonio Nakouzi
- Department of Medicine, Division of Infectious Diseases, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, New York, United States of America
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - Natalia G. Herrera
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - Nicholas C. Morano
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - James H. Lee
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - Hyun ah Yoon
- Department of Medicine, Division of Infectious Diseases, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, New York, United States of America
| | - Scott J. Garforth
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - Steven C. Almo
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, United States of America
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Erbaş İC, Keleş YE, Erdeniz EH, Yılmaz AT, Yeşil E, Çakıcı Ö, Akça M, Ulu NK, Dinç F, Çiftdoğan DY, Öncel S, Kuyucu N, Tapısız A, Belet N. Evaluation of possible COVID-19 reinfection in children: A multicenter clinical study. Arch Pediatr 2023; 30:187-191. [PMID: 36804354 PMCID: PMC9902289 DOI: 10.1016/j.arcped.2023.01.008] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 08/17/2022] [Accepted: 01/07/2023] [Indexed: 02/10/2023]
Abstract
BACKGROUND Although it was originally unknown whether there would be cases of reinfection of coronavirus disease 2019 (COVID-19) as seen with other coronaviruses, cases of reinfection were reported from various regions recently. However, there is little information about reinfection in children. METHODS In this study, we aimed to investigate the incidence and clinical findings of reinfection in pediatric patients who had recovered from COVID-19. We retrospectively evaluated all patients under 18 years of age with COVID-19 infection from a total of eight healthcare facilities in Turkey, between March 2020 and July 2021. Possible reinfection was defined as a record of confirmed COVID-19 infection based on positive reverse transcription-polymerase chain reaction (RT-PCR) test results at least 3 months apart. RESULTS A possible reinfection was detected in 11 out of 8840 children, which yielded an incidence of 0.12%. The median duration between two episodes of COVID-19 was 196 (92-483) days. When initial and second episodes were compared, the rates of symptomatic and asymptomatic disease were similar for both, as was the severity of the disease (p = 1.000). Also, there was no significant difference in duration of symptoms (p = 0.498) or in hospitalization rates (p = 1.000). Only one patient died 15 days after PCR positivity, which resulted in a 9.1% mortality rate for cases of reinfection in pediatric patients. CONCLUSION We observed that children with COVID-19 were less likely to be exposed to reinfection when compared with adults. Although the clinical spectrum of reinfection was mostly similar to the first episode, we reported death of a healthy child during the reinfection.
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Affiliation(s)
- İrem Ceren Erbaş
- Division of Pediatric Infectious Disease, Faculty of Medicine, Dokuz Eylül University, İzmir, Turkey.
| | - Yıldız Ekemen Keleş
- Division of Pediatric Infectious Disease, Tepecik Training and Research Hospital, İzmir, Turkey
| | - Emine Hafize Erdeniz
- Division of Pediatric Infectious Disease, Faculty of Medicine, On Dokuz Mayıs University, Samsun, Turkey
| | - Ayşe Tekin Yılmaz
- Division of Pediatric Infectious Disease, Eskişehir State Hospital, Eskişehir, Turkey
| | - Edanur Yeşil
- Division of Pediatric Infectious Disease, Mersin State Hospital, Mersin, Turkey
| | - Özlem Çakıcı
- Division of Pediatric Infectious Disease, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey
| | - Mehtap Akça
- Division of Pediatric Infectious Disease, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Nursel Kara Ulu
- Division of Pediatric Infectious Disease, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Fatih Dinç
- Division of Virology, Faculty of Medicine, Dokuz Eylül University, İzmir, Turkey
| | - Dilek Yılmaz Çiftdoğan
- Division of Pediatric Infectious Disease, Tepecik Training and Research Hospital, İzmir, Turkey
| | - Selim Öncel
- Division of Pediatric Infectious Disease, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey
| | - Necdet Kuyucu
- Division of Pediatric Infectious Disease, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Anıl Tapısız
- Division of Pediatric Infectious Disease, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Nurşen Belet
- Division of Pediatric Infectious Disease, Faculty of Medicine, Dokuz Eylül University, İzmir, Turkey
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Mouna L, Razazian M, Duquesne S, Roque-Afonso AM, Vauloup-Fellous C. Validation of a SARS-CoV-2 Surrogate Virus Neutralization Test in Recovered and Vaccinated Healthcare Workers. Viruses 2023; 15. [PMID: 36851641 DOI: 10.3390/v15020426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 01/03/2023] [Accepted: 01/28/2023] [Indexed: 02/05/2023] Open
Abstract
Vaccination against COVID-19 is the main public health approach to fight against the pandemic. The Spike (S) glycoprotein of SARS-CoV-2 is the principal target of the neutralizing humoral response. We evaluated the analytical and clinical performances of a surrogate virus neutralization test (sVNT) compared to conventional neutralization tests (cVNTs) and anti-S eCLIA assays in recovered and/or vaccinated healthcare workers. Our results indicate that sVNTs displayed high specificity and no cross-reactivity. Both eCLIA and sVNT immunoassays were good at identifying cVNT serum dilutions ≥1:16. The optimal thresholds when identifying cVNT titers ≥1:16, were 74.5 U/mL and 49.4 IU/mL for anti-S eCLIA and sVNT, respectively. Our data show that neutralizing antibody titers (Nab) differ from one individual to another and may diminish over time. Specific assays such as sVNTs could offer a reliable complementary tool to routine anti-S serological assays.
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Liu H, Aviszus K, Zelarney P, Liao SY, Gerber AN, Make B, Wechsler ME, Marrack P, Reinhardt RL. Vaccine-elicited B and T cell immunity to SARS-CoV-2 is impaired in chronic lung disease patients. medRxiv 2023:2023.01.25.23284971. [PMID: 36747750 PMCID: PMC9901055 DOI: 10.1101/2023.01.25.23284971] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The protection afforded by vaccination against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) to individuals with chronic lung disease is not well established. To understand how chronic lung disease impacts SARS-CoV-2 vaccine-elicited immunity we performed deep immunophenotyping of the humoral and cell mediated SARS-CoV-2 vaccine response in an investigative cohort of vaccinated patients with diverse pulmonary conditions including asthma, chronic obstructive pulmonary disease (COPD), and interstitial lung disease (ILD). Compared to healthy controls, 48% of vaccinated patients with chronic lung diseases had reduced antibody titers to the SARS-CoV-2 vaccine antigen as early as 3-4 months after vaccination, correlating with decreased vaccine-specific memory B cells. Vaccine-specific CD4 and CD8 T cells were also significantly reduced in patients with asthma, COPD, and a subset of ILD patients compared to healthy controls. These findings reveal the complex nature of vaccine-elicited immunity in high-risk patients with chronic lung disease.
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Affiliation(s)
- Haolin Liu
- Department of Immunology and Genomic Medicine, National Jewish Health, Denver, CO, 80206, USA
| | - Katja Aviszus
- Department of Immunology and Genomic Medicine, National Jewish Health, Denver, CO, 80206, USA
| | - Pearlanne Zelarney
- Research Informatics Services, National Jewish Health, Denver, CO, 80206, USA
| | - Shu-Yi Liao
- Department of Medicine, National Jewish Health, Denver, CO, 80206, USA
- Division of Environmental and Occupational Health Sciences, National Jewish Health, Denver CO, 80206, USA
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Anthony N Gerber
- Department of Immunology and Genomic Medicine, National Jewish Health, Denver, CO, 80206, USA
- Department of Medicine, National Jewish Health, Denver, CO, 80206, USA
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
- Division of Pulmonary, Critical Care and Sleep Medicine, National Jewish Health, Denver CO, 80206, USA
| | - Barry Make
- Department of Medicine, National Jewish Health, Denver, CO, 80206, USA
- Division of Pulmonary, Critical Care and Sleep Medicine, National Jewish Health, Denver CO, 80206, USA
| | - Michael E Wechsler
- Department of Medicine, National Jewish Health, Denver, CO, 80206, USA
- Division of Pulmonary, Critical Care and Sleep Medicine, National Jewish Health, Denver CO, 80206, USA
| | - Philippa Marrack
- Department of Immunology and Genomic Medicine, National Jewish Health, Denver, CO, 80206, USA
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - R Lee Reinhardt
- Department of Immunology and Genomic Medicine, National Jewish Health, Denver, CO, 80206, USA
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
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Favaro M, Zampini P, Pistoia ES, Gaziano R, Grelli S, Fontana C. Rapid System to Detect Variants of SARS-CoV-2 in Nasopharyngeal Swabs. Viruses 2023; 15. [PMID: 36851567 DOI: 10.3390/v15020353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 01/15/2023] [Accepted: 01/16/2023] [Indexed: 01/28/2023] Open
Abstract
Currently, the reference method for identifying the presence of variants of SARS-CoV-2 is whole genome sequencing. Although it is less expensive than in the past, it is still time-consuming, and interpreting the results is difficult, requiring staff with specific skills who are not always available in diagnostic laboratories. The test presented in this study aimed to detect, using traditional real-time PCR, the presence of the main variants described for the spike protein of the SARS-CoV-2 genome. The primers and probes were designed to detect the main deletions that characterize the different variants. The amplification targets were deletions in the S gene: 25-27, 69-70, 241-243, and 157-158. In the ORF1a gene, the deletion 3675-3677 was chosen. Some of these mutations can be considered specific variants, while others can be identified by the simultaneous presence of one or more deletions. We avoided using point mutations in order to improve the speed of the test. Our test can help clinical and medical microbiologists quickly recognize the presence of variants in biological samples (particularly nasopharyngeal swabs). The test can also be used to identify variants of the virus that could potentially be more diffusive as well as not responsive to the vaccine.
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Atamenta T, Cherie A, Alemu W. Time to death and its predictors among adult patients with COVID-19: A retrospective cohort study in Ethiopia. Front Epidemiol 2023; 2:1065184. [PMID: 38455333 PMCID: PMC10911043 DOI: 10.3389/fepid.2022.1065184] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 12/19/2022] [Indexed: 03/09/2024]
Abstract
Background Coronavirus (COVID-19) disease affected people throughout the globe and has become a severe threat to the health and wellbeing of the global community. Time to death and predictors of mortality vary across settings. So far, no or few related studies have been undertaken in Ethiopia. Studying the time to death from COVID-19 and its predictors is essential to understand the characteristics of the disease and thereby contribute to the identification of indicators for early detection and initiation of treatment. Therefore, this study aimed to estimate time to death and its predictors among adults with COVID-19 in Ethiopia. Methods A retrospective follow-up study was conducted among 602 adults with COVID-19 attending Eka Kotebe General Hospital, COVID-19 Treatment Center, between 13 March 2020 and 13 November 2020. The data were entered by Epi-data version 4.2 while the analysis was carried out using STATA version 16. A Kaplan-Meier survivor curve was computed to estimate the survival probabilities. A log-rank test was used to compare the difference in survival curves. Cox proportional hazard models were fitted to identify the predictors of time to death. Results The overall median time to death was 21 days. Older adults (aged ≥65 years) [adjusted hazard ratio (AHR) 2.22, 95% confidence interval (CI) 1.02-4.86], being men (AHR 3.04, 95% CI 1.61-5.74), shortness of breathing at admission (AHR 2.29, 95% CI 1.16-4.54), comorbidity (AHR 2.23, 95% CI 1.04-4.80), diabetes mellitus (AHR 2.31, 95% CI 1.30-4.08), altered cardiac function (AHR 2.07, 95% CI 1.21-3.43), and baseline white blood cell count of greater than 10 (103/µl) (AHR 2.62, 95% CI 1.55-4.44) were independent predictors of COVID-19 mortality. Conclusion Male sex, older adults, shortness of breathing at admission, patients with comorbidities, and higher blood cell count were significant predictors of time to death from COVID-19. Therefore, concerned stakeholders should focus on those predictors of mortality and design interventions accordingly to enhance the survival of patients with COVID-19.
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Affiliation(s)
- Tegene Atamenta
- School of Nursing, College of Health Science, Woldia University, Woldia, Ethiopia
| | - Amsale Cherie
- School of Nursing and Midwifery, College of Health Science, Addis Ababa University, Addis Ababa, Ethiopia
| | - Wudma Alemu
- School of Nursing and Midwifery, College of Health Science, Addis Ababa University, Addis Ababa, Ethiopia
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Varela APM, Sant’Anna FH, dos Santos AV, Prichula J, Comerlato J, dos Santos GT, Wendland E. Genomic evidence of SARS-CoV-2 reinfection cases in southern Brazil. Arch Virol 2023; 168:19. [PMID: 36593369 PMCID: PMC9807423 DOI: 10.1007/s00705-022-05648-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 10/13/2022] [Indexed: 01/04/2023]
Abstract
Cases of reinfection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) have been reported worldwide. We investigated reinfection cases in a set of more than 30,000 samples, and the SARS-CoV-2 genomes from selected samples from four patients with at least two positive diagnoses with an interval ≥ 45 days between tests were sequenced and analyzed. Comparative genomic and phylogenetic analysis confirmed three reinfection cases and suggested that the fourth one was caused by a virus of the same lineage. Viral sequencing is crucial for understanding the natural course of reinfections and for planning public health strategies for management of COVID-19.
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Affiliation(s)
| | | | | | - Janira Prichula
- Department of Microbiology and Ophthalmology, Harvard Medical School and Mass Eye and Ear Infirmary, Boston, USA
| | | | | | - Eliana Wendland
- Hospital Moinhos de Vento, PROADI-SUS, Porto Alegre, Brazil ,Department of Community Health, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, Brazil
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40
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Assaid N, Arich S, Charoute H, Akarid K, Anouar Sadat M, Maaroufi A, Ezzikouri S, Sarih M. Kinetics of SARS-CoV-2 IgM and IgG Antibodies 3 Months after COVID-19 Onset in Moroccan Patients. Am J Trop Med Hyg 2023; 108:145-154. [PMID: 36509045 PMCID: PMC9833093 DOI: 10.4269/ajtmh.22-0448] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 09/24/2022] [Indexed: 12/15/2022] Open
Abstract
Coronavirus disease (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) poses serious global public health problems. Characterization of the immune response, particularly antibodies to SARS-CoV-2, is important for establishing vaccine strategies. The purpose of this study was to evaluate longitudinally the kinetics of anti-SARS-CoV-2 antibodies against spike protein (S1) for up to 3 months in a cohort of 169 COVID-19 patients. We enrolled COVID-19 patients at two regional hospitals in Casablanca, Morocco, between March and September 2021. Blood samples were collected and N-specific IgM and S-specific IgG levels were measured by a commercial Euroimmun ELISA. IgM antibodies were assessed 2-5 (D00), 9-12 (D07), 17-20 (D15), and 32-37 (D30) days after symptom onset; IgG antibodies were assessed at these time points plus 60 (D60) and 90 (D90) days after symptom onset. We found that at 3 months after symptom onset, 79% of patients had detectable SARS-CoV-2-specific IgG antibodies, whereas their IgM seropositivity was 19% by 1 month after symptom onset. The IgM level decreased to 0.34 (interquartile range [IQR] 0.19-0.92) at 1 month after symptom onset, whereas the IgG level peaked at D30 (3.10; IQR 1.83-5.64) and remained almost stable at D90 (2.95; IQR 1.52-5.19). IgG levels were significantly higher in patients older than 50 years than in those younger than 50 at all follow-up time points (P < 0.05). Statistical analysis showed no significant difference in median anti-S1 antibody levels among infected patients based on gender or comorbidities. This study provides information on the longevity of anti-SARS-CoV-2 IgM and IgG antibodies in COVID-19 patients.
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Affiliation(s)
- Najlaa Assaid
- Service de Parasitologie et des Maladies Vectorielles, Institut Pasteur du Maroc, Casablanca, Morocco;,Biochemistry, Biotechnology and Immunophysiopathology Research Team, Health and Environment Laboratory, Aïn Chock Faculty of Sciences, University of Hassan II Casablanca, Casablanca, Morocco
| | - Soukaina Arich
- Service de Parasitologie et des Maladies Vectorielles, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hicham Charoute
- Research Unit of Epidemiology, Biostatistics and Bioinformatics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Khadija Akarid
- Biochemistry, Biotechnology and Immunophysiopathology Research Team, Health and Environment Laboratory, Aïn Chock Faculty of Sciences, University of Hassan II Casablanca, Casablanca, Morocco
| | - Mohamed Anouar Sadat
- Research Unit of Epidemiology, Biostatistics and Bioinformatics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Abderrahmane Maaroufi
- Service de Parasitologie et des Maladies Vectorielles, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Sayeh Ezzikouri
- Virology Unit, Viral Hepatitis Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - M’hammed Sarih
- Service de Parasitologie et des Maladies Vectorielles, Institut Pasteur du Maroc, Casablanca, Morocco;,Address correspondence to M’hammed Sarih, Service de Parasitologie et des Maladies Vectorielles, Institut Pasteur du Maroc, Place Louis Pasteur, Casablanca, Morocco. E-mail:
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Goldman JD, Wang K, Röltgen K, Nielsen SCA, Roach JC, Naccache SN, Yang F, Wirz OF, Yost KE, Lee JY, Chun K, Wrin T, Petropoulos CJ, Lee I, Fallen S, Manner PM, Wallick JA, Algren HA, Murray KM, Hadlock J, Chen D, Dai CL, Yuan D, Su Y, Jeharajah J, Berrington WR, Pappas GP, Nyatsatsang ST, Greninger AL, Satpathy AT, Pauk JS, Boyd SD, Heath JR. Reinfection with SARS-CoV-2 and Waning Humoral Immunity: A Case Report. Vaccines (Basel) 2022; 11:5. [PMID: 36679852 PMCID: PMC9861578 DOI: 10.3390/vaccines11010005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/15/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022] Open
Abstract
Recovery from COVID-19 is associated with production of anti-SARS-CoV-2 antibodies, but it is uncertain whether these confer immunity. We describe viral RNA shedding duration in hospitalized patients and identify patients with recurrent shedding. We sequenced viruses from two distinct episodes of symptomatic COVID-19 separated by 144 days in a single patient, to conclusively describe reinfection with a different strain harboring the spike variant D614G. This case of reinfection was one of the first cases of reinfection reported in 2020. With antibody, B cell and T cell analytics, we show correlates of adaptive immunity at reinfection, including a differential response in neutralizing antibodies to a D614G pseudovirus. Finally, we discuss implications for vaccine programs and begin to define benchmarks for protection against reinfection from SARS-CoV-2.
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Affiliation(s)
- Jason D. Goldman
- Division of Infectious Diseases, Swedish Medical Center, Seattle, WA 98122, USA
- Providence St. Joseph Health, Renton, WA 98057, USA
- Division of Allergy and Infectious Diseases, University of Washington, Seattle, WA 98195, USA
| | - Kai Wang
- Institute for Systems Biology, Seattle, WA 98103, USA
| | - Katharina Röltgen
- Department of Pathology, Stanford University, Stanford, CA 94305, USA
| | | | | | | | - Fan Yang
- Department of Pathology, Stanford University, Stanford, CA 94305, USA
| | - Oliver F. Wirz
- Department of Pathology, Stanford University, Stanford, CA 94305, USA
| | - Kathryn E. Yost
- Department of Pathology, Stanford University, Stanford, CA 94305, USA
| | - Ji-Yeun Lee
- Department of Pathology, Stanford University, Stanford, CA 94305, USA
| | - Kelly Chun
- LabCorp Esoterix, Calabasas, CA 91301, USA
| | - Terri Wrin
- Monogram Biosciences, South San Francisco, CA 94080, USA
| | | | - Inyoul Lee
- Institute for Systems Biology, Seattle, WA 98103, USA
| | | | - Paula M. Manner
- Providence St. Joseph Health, Renton, WA 98057, USA
- Swedish Center for Research and Innovation, Swedish Medical Center, Seattle, WA 98104, USA
| | - Julie A. Wallick
- Providence St. Joseph Health, Renton, WA 98057, USA
- Swedish Center for Research and Innovation, Swedish Medical Center, Seattle, WA 98104, USA
| | - Heather A. Algren
- Providence St. Joseph Health, Renton, WA 98057, USA
- Swedish Center for Research and Innovation, Swedish Medical Center, Seattle, WA 98104, USA
| | - Kim M. Murray
- Institute for Systems Biology, Seattle, WA 98103, USA
| | - Jennifer Hadlock
- Providence St. Joseph Health, Renton, WA 98057, USA
- Institute for Systems Biology, Seattle, WA 98103, USA
| | - Daniel Chen
- Institute for Systems Biology, Seattle, WA 98103, USA
| | | | - Dan Yuan
- Institute for Systems Biology, Seattle, WA 98103, USA
| | - Yapeng Su
- Institute for Systems Biology, Seattle, WA 98103, USA
| | - Joshua Jeharajah
- Division of Infectious Diseases, Polyclinic, Seattle, WA 98104, USA
| | - William R. Berrington
- Division of Infectious Diseases, Swedish Medical Center, Seattle, WA 98122, USA
- Providence St. Joseph Health, Renton, WA 98057, USA
| | - George P. Pappas
- Division of Pulmonology and Critical Care Medicine, Swedish Medical Center, Seattle, WA 98104, USA
| | - Sonam T. Nyatsatsang
- Division of Infectious Diseases, Swedish Medical Center, Seattle, WA 98122, USA
- Providence St. Joseph Health, Renton, WA 98057, USA
| | - Alexander L. Greninger
- Department of Laboratory Medicine and Pathology, University of Washington School of Medicine, Seattle, WA 98109, USA
- Vaccine and Infectious Disease Division, Fred Hutch, Seattle, DC 98109, USA
| | | | - John S. Pauk
- Division of Infectious Diseases, Swedish Medical Center, Seattle, WA 98122, USA
- Providence St. Joseph Health, Renton, WA 98057, USA
| | - Scott D. Boyd
- Department of Pathology, Stanford University, Stanford, CA 94305, USA
- Sean N. Parker Center for Allergy and Asthma Research, Stanford, CA 94304, USA
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Capraru ID, Romanescu M, Anghel FM, Oancea C, Marian C, Sirbu IO, Chis AR, Ciordas PD. Identification of Genomic Variants of SARS-CoV-2 Using Nanopore Sequencing. Medicina (Kaunas) 2022; 58:medicina58121841. [PMID: 36557043 PMCID: PMC9788413 DOI: 10.3390/medicina58121841] [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] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/11/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
Background and Objectives: SARS-CoV-2 is the first global threat and life-changing event of the twenty-first century. Although efficient treatments and vaccines have been developed, due to the virus's ability to mutate in key regions of the genome, whole viral genome sequencing is needed for efficient monitoring, evaluation of the spread, and even the adjustment of the molecular diagnostic assays. Materials and Methods: In this study, Nanopore and Ion Torrent sequencing technologies were used to detect the main SARS-CoV-2 circulating strains in Timis County, Romania, between February 2021 and May 2022. Results: We identified 22 virus lineages belonging to seven clades: 20A, 20I (Alpha, V1), 21B (Kappa), 21I (Delta), 21J (Delta), 21K (Omicron), and 21L (Omicron). Conclusions: Results obtained with both methods are comparable, and we confirm the utility of Nanopore sequencing in large-scale epidemiological surveillance due to the lower cost and reduced time for library preparation.
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Affiliation(s)
- Ionut Dragos Capraru
- Discipline of Epidemiology, “Victor Babes” University of Medicine and Pharmacy, 300041 Timișoara, Romania
- Doctoral School, “Victor Babes” University of Medicine and Pharmacy, 300041 Timișoara, Romania
- Public Health Authority Timiș County, 300029 Timișoara, Romania
| | - Mirabela Romanescu
- Doctoral School, “Victor Babes” University of Medicine and Pharmacy, 300041 Timișoara, Romania
- Discipline of Biochemistry, “Victor Babes” University of Medicine and Pharmacy, 300041 Timișoara, Romania
- Center for Complex Network Science, “Victor Babes” University of Medicine and Pharmacy, 300041 Timişoara, Romania
| | - Flavia Medana Anghel
- Doctoral School, “Victor Babes” University of Medicine and Pharmacy, 300041 Timișoara, Romania
- Discipline of Biochemistry, “Victor Babes” University of Medicine and Pharmacy, 300041 Timișoara, Romania
| | - Cristian Oancea
- Discipline of Pulmonology, “Victor Babes” University of Medicine and Pharmacy, 300041 Timișoara, Romania
| | - Catalin Marian
- Discipline of Biochemistry, “Victor Babes” University of Medicine and Pharmacy, 300041 Timișoara, Romania
- Center for Complex Network Science, “Victor Babes” University of Medicine and Pharmacy, 300041 Timişoara, Romania
| | - Ioan Ovidiu Sirbu
- Discipline of Biochemistry, “Victor Babes” University of Medicine and Pharmacy, 300041 Timișoara, Romania
- Center for Complex Network Science, “Victor Babes” University of Medicine and Pharmacy, 300041 Timişoara, Romania
| | - Aimee Rodica Chis
- Discipline of Biochemistry, “Victor Babes” University of Medicine and Pharmacy, 300041 Timișoara, Romania
- Center for Complex Network Science, “Victor Babes” University of Medicine and Pharmacy, 300041 Timişoara, Romania
- Correspondence:
| | - Paula Diana Ciordas
- Doctoral School, “Victor Babes” University of Medicine and Pharmacy, 300041 Timișoara, Romania
- Discipline of Biochemistry, “Victor Babes” University of Medicine and Pharmacy, 300041 Timișoara, Romania
- Center for Complex Network Science, “Victor Babes” University of Medicine and Pharmacy, 300041 Timişoara, Romania
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Fülöp GA, Gógl Á, Lakatos B, Sydó N, Csulak E, Mester B, Tóth S, Petrov Á, Nagy VK, Merkely G, Merkely B. Swimming competitions in the era of COVID-19: Lessons from successfully hosting the International Swimming League. Physiol Int 2022; 109:511-523. [DOI: 10.1556/2060.2022.00153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 08/08/2022] [Accepted: 09/16/2022] [Indexed: 12/13/2022]
Abstract
AbstractBackgroundOrganization of mass sport events in the COVID-19 era is utterly complicated. Containments measures, required to avoid a virus outbreak, force athletes to compete under circumstances they never experienced before, most likely having a deleterious effect on their performance.PurposeWe aimed to design a so-called athlete-friendly bubble system for the International Swimming League 2020 event, which is strict enough to avoid a COVID-19 outbreak, but still provides a supportive environment for the athletes.MethodsTo avoid the feeling of imprisonment, athletes were permitted to spend a certain amount of time in the parks surrounding the hotels. Such alleviations were possible to apply with strict adherence to the hygienic and social distancing protocols and regular COVID-19 testing. Evaluation of every COVID-19 positive case was key, and if prolonged PCR positivity or false positive PCR result was identified, the unnecessary quarantine was planned to be lifted. Return to play protocol (RTP) was planned, in case of a COVID-19 infection of an athlete inside the bubble. To test, if the athlete-friendly system provided a supportive environment, we evaluated athlete performance.Results11,480 PCR tests were performed for 1,421 individuals. 63 COVID-19 positive cases were detected, of which 5 turned out to be clinically insignificant, either because of prolonged PCR positivity or because of a false positive result. 93.1% of the positive cases were detected in the local crew, while no athlete got infected inside the bubble, as the two infected athletes were tested positive upon arrival. RTP was provided for two athletes. 85% of the athletes showed improvement during the bubble and 8 world records were broken.ConclusionThe applied protocol proved to be effective, as no athlete got infected inside the bubble, moreover, the athlete-friendly system supported the athletes to improve their performance.
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Affiliation(s)
- Gábor A. Fülöp
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Álmos Gógl
- Szent Rókus Hospital of Semmelweis University, Budapest, Hungary
| | - Bálint Lakatos
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Nóra Sydó
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Emese Csulak
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Bianka Mester
- Division of Hospital Hygiene, Semmelweis University, Budapest, Hungary
| | | | | | | | - Gergo Merkely
- Semmelweis University, Budapest, Hungary
- Orthopedic Department, Brigham and Women's Hospital, Harvard University, Boston, MA, USA
| | - Béla Merkely
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
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Amer Malki, El-Sayed Atlam, Aboul Ella Hassanien, Ashraf Ewis, Guesh Dagnew, Ibrahim Gad. SARIMA model-based forecasting required number of COVID-19 vaccines globally and empirical analysis of peoples’ view towards the vaccines. Alexandria Engineering Journal 2022; 61. [ DOI: 10.1016/j.aej.2022.05.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/02/2022] [Accepted: 05/30/2022] [Indexed: 06/19/2023]
Abstract
Recent studies regarding COVID-19 show a growing tendency to talk about the COVID-19 Pandemic on online channels. With the recent release of the Pfizer vaccine of COVID-19, people keep posting many rumors regarding the safety concerns of the Vaccine, especially among older people. Due to the rapid spread of the COVID-19 virus and the worldwide Pandemic developed, the rush to develop the COVID-19 Vaccine has become an alarming priority in health care services worldwide. In this research work, we have systematically evaluated people’s views towards the COVID-19 Vaccine, and shreds of evidence are supported empirically. The study mainly focuses on the empirical evidence and intensive discussions on what is currently known about the mechanism of action, efficacy, and toxicity of the most promising vaccines (Moderna), (Pfizer/BioNtech), (Astrazenac/Oxford), and (Sputnik V) against COVID-19. Our study’s primary objective is to provide an analysis of the questionnaire regarding people’s opinions, preferences, and acceptance of the COVID-19 vaccines. We have created an online questionnaire using a google form to collect data from various countries supposed to employ COVID-19 vaccines. The questionnaires were distributed to people in many Arab and foreign countries such as Egypt, Saudi Arabia, India, England, China, and Japan. A total of 516 responses were returned and analyzed using statistical, and Seasonal Autoregressive Integrated Moving Average (SARIMA) approaches. The SARIMA model is used to predict the total number of vaccines in the next few days. To attain the most accurate forecast and prediction, the SARIMA model parameters are investigated with a grid search method. Finally, the combination of the parameters (1,0,1)×(1,0,0,1) is considered to be the best SARIMA model because it has the lowest AIC values of −4100.11 and the best Correlation coefficients of 0.984.
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Deng L, Li P, Zhang X, Jiang Q, Turner D, Zhou C, Gao Y, Qian F, Zhang C, Lu H, Zou H, Vermund SH, Qian HZ. Risk of SARS-CoV-2 reinfection: a systematic review and meta-analysis. Sci Rep 2022; 12:20763. [PMID: 36456577 PMCID: PMC9714387 DOI: 10.1038/s41598-022-24220-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [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: 03/07/2022] [Accepted: 11/11/2022] [Indexed: 12/02/2022] Open
Abstract
This meta-analysis aims to synthesize global evidence on the risk of reinfection among people previously infected with SARS-CoV-2. We systematically searched PubMed, Scopus, Embase and Web of Science as of April 5, 2021. We conducted: (1) meta-analysis of cohort studies containing data sufficient for calculating the incidence rate of SARS-CoV-2 reinfection; (2) systematic review of case reports with confirmed SARS-CoV-2 reinfection cases. The reinfection incidence was pooled by zero-inflated beta distribution. The hazard ratio (HR) between reinfection incidence among previously infected individuals and new infection incidence among infection-naïve individuals was calculated using random-effects models. Of 906 records retrieved and reviewed, 11 studies and 11 case reports were included in the meta-analysis and the systematic review, respectively. The pooled SARS-CoV-2 reinfection incidence rate was 0.70 (standard deviation [SD] 0.33) per 10,000 person-days. The incidence of reinfection was lower than the incidence of new infection (HR = 0.12, 95% confidence interval 0.09-0.17). Our meta-analysis of studies conducted prior to the emergency of the more transmissible Omicron variant showed that people with a prior SARS-CoV-2 infection could be re-infected, and they have a lower risk of infection than those without prior infection. Continuing reviews are needed as the reinfection risk may change due to the rapid evolution of SARS-CoV-2 variants.
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Affiliation(s)
- Luojia Deng
- Department of Bioinformatics and Biostatistics, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Peiqi Li
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xuezhixing Zhang
- Yale School of Public Health, Yale University, 300 George Street, New Haven, CT, USA
| | - Qianxue Jiang
- Department of Bioinformatics and Biostatistics, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | | | - Chao Zhou
- Department of Bioinformatics and Biostatistics, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Yanxiao Gao
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen, China
| | - Frank Qian
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Ci Zhang
- Xiangya Nursing School, Central South University, Changsha, China
| | - Hui Lu
- Department of Bioinformatics and Biostatistics, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Huachun Zou
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen, China
| | - Sten H Vermund
- Yale School of Public Health, Yale University, 300 George Street, New Haven, CT, USA
| | - Han-Zhu Qian
- Yale School of Public Health, Yale University, 300 George Street, New Haven, CT, USA.
- GSK plc, Rockville, MD, USA.
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Field CJ, Heinly TA, Patel DR, Sim DG, Luley E, Gupta SL, Vanderford TH, Wrammert J, Sutton TC. Immune durability and protection against SARS-CoV-2 re-infection in Syrian hamsters. Emerg Microbes Infect 2022; 11:1103-1114. [PMID: 35333692 PMCID: PMC9037228 DOI: 10.1080/22221751.2022.2058419] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 03/22/2022] [Indexed: 01/08/2023]
Abstract
Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has caused a pandemic. As immunity to endemic human coronaviruses (i.e. NL63 or OC43) wanes leading to re-infection, it was unknown if SARS-CoV-2 immunity would also decline permitting repeat infections. Recent case reports confirm previously infected individuals can become re-infected; however, re-infection may be due to heterogeneity in the initial infection or the host immune response, or may be the result of infection with a variant strain that escapes pre-existing immunity. To control these variables, we utilized the Syrian hamster model to evaluate the duration of immunity and susceptibility to re-infection with SARS-CoV-2. Hamsters were given a primary mock or SARS-CoV-2 infection (culture media or 105 TCID50 USA/WA1/2020 isolate, respectively). Mock and SARS-CoV-2 infected hamsters were then given a secondary SARS-CoV-2 infection at 1, 2, 4, or 6 months post-primary infection (n = 14/time point/group). After the primary SARS-CoV-2 infection, hamsters developed anti-spike protein IgG, IgA, and neutralizing antibodies, and these antibodies were maintained for at least 6 months. Upon secondary SARS-CoV-2 challenge, previously SARS-CoV-2 infected animals were protected from weight loss, while all previously mock-infected animals became infected and lost weight. Importantly, despite having high titres of antibodies, one SARS-CoV-2 infected animal re-challenged at 4 months had a breakthrough infection with replicating virus in the upper and lower respiratory tract. These studies demonstrate immunity to SARS-CoV-2 is maintained for 6 months; however, protection may be incomplete and, even in the presence of high antibody titres, previously infected hosts may become re-infected.
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Affiliation(s)
- C. J. Field
- Department of Veterinary and Biomedical Science, The Pennsylvania State University, University Park, PA, USA
- The Huck Institutes of Life Sciences, The Pennsylvania State University, University Park, PA, USA
- Emory-UGA Center of Excellence of Influenza Research and Surveillance (CEIRS), University Park, PA, USA
| | - T. A. Heinly
- Department of Veterinary and Biomedical Science, The Pennsylvania State University, University Park, PA, USA
- The Huck Institutes of Life Sciences, The Pennsylvania State University, University Park, PA, USA
- Emory-UGA Center of Excellence of Influenza Research and Surveillance (CEIRS), University Park, PA, USA
| | - D. R. Patel
- Department of Veterinary and Biomedical Science, The Pennsylvania State University, University Park, PA, USA
- The Huck Institutes of Life Sciences, The Pennsylvania State University, University Park, PA, USA
| | - D. G. Sim
- The Huck Institutes of Life Sciences, The Pennsylvania State University, University Park, PA, USA
- Department of Biology, The Pennsylvania State University, University Park, PA, USA
| | - E. Luley
- Animal Diagnostic Lab, The Pennsylvania State University, University Park, PA, USA
| | - S. L. Gupta
- Department of Pediatrics, Division of Infectious Disease, School of Medicine, Emory University, Atlanta, GA, USA
| | - T. H. Vanderford
- Division of Microbiology and Immunology, Yerkes National Primate Research Center, Emory University, Atlanta, GA, USA
| | - J. Wrammert
- Emory-UGA Center of Excellence of Influenza Research and Surveillance (CEIRS), University Park, PA, USA
- Department of Pediatrics, Division of Infectious Disease, School of Medicine, Emory University, Atlanta, GA, USA
| | - T. C. Sutton
- Department of Veterinary and Biomedical Science, The Pennsylvania State University, University Park, PA, USA
- The Huck Institutes of Life Sciences, The Pennsylvania State University, University Park, PA, USA
- Emory-UGA Center of Excellence of Influenza Research and Surveillance (CEIRS), University Park, PA, USA
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Abstract
The ongoing global pandemic of novel coronavirus pneumonia (COVID-19) caused by the SARS-CoV-2 has a significant impact on global health and economy system. In this context, there have been some landmark advances in vaccine development. Over 100 new coronavirus vaccine candidates have been approved for clinical trials, with ten WHO-approved vaccines including four inactivated virus vaccines, two mRNA vaccines, three recombinant viral vectored vaccines and one protein subunit vaccine on the "Emergency Use Listing". Although the SARS-CoV-2 has an internal proofreading mechanism, there have been a number of mutations emerged in the pandemic affecting its transmissibility, pathogenicity and immunogenicity. Of these, mutations in the spike (S) protein and the resultant mutant variants have posed new challenges for vaccine development and application. In this review article, we present an overview of vaccine development, the prevalence of new coronavirus variants and their impact on protective efficacy of existing vaccines and possible immunization strategies coping with the viral mutation and diversity.
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Fatouh MM, Kandil NM, EL Garhy NM. Correlation between chest CT scores and clinical impact in patients re-infected with COVID-19 during the two attacks: an observational study. Egypt J Radiol Nucl Med 2022. [PMCID: PMC8900098 DOI: 10.1186/s43055-022-00739-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background Worldwide, millions of people got COVID-19 infection since the start of the pandemic with a large number of deaths. Re-infection with SARS-CoV-2 is possible, because it can mutate into new strains as it is an RNA virus. The main objective of our study is to correlate between CT severity score of the patients re-infected with COVID-19 during the first and second attack and its clinical impact.
Results We performed a retrospective cohort study. It was carried out on fifty symptomatic patients (11 females and 39 males). Their ages ranged from 38 to 71 years. We included only patients who were re-infected after more than 6 months of the first infection and showed clinical symptoms with SARS-CoV-2 PCR-positive test. We found that CT severity score was decreased in the second infection in 47 (94%) of our patients associated with decreased respiratory distress as well as oxygen requirements, while the CT severity score was increased in two patients and only one patient showed no change in CT score severity between two infections. Conclusion The reduction in CT severity score in the majority of re-infected patients suggested the role of the immunity developed from first infection in protection against severe lung affection in case of repeated infection even after 6 months despite poor immunity against re-infection.
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Cegolon L, Negro C, Mastrangelo G, Filon FL; ORCHESTRA working group. Primary SARS-CoV-2 Infections, Re-infections and Vaccine Effectiveness during the Omicron Transmission Period in Healthcare Workers of Trieste and Gorizia (Northeast Italy), 1 December 2021-31 May 2022. Viruses 2022; 14. [PMID: 36560692 DOI: 10.3390/v14122688] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 12/03/2022] Open
Abstract
Objective: To evaluate the incidence of primary and recurrent COVID-19 infections in healthcare workers (HCWs) routinely screened for SARS-CoV-2 by nasopharyngeal swabs during the Omicron wave. Design: Dynamic Cohort study of HCWs (N = 7723) of the University Health Agency Giuliano Isontina (ASUGI), covering health services of the provinces of Trieste and Gorizia (Northeast Italy). Cox proportional hazard model was employed to estimate the risk of primary as well as recurrent SARS-CoV-2 infection from 1 December 2021 through 31 May 2022, adjusting for a number of confounding factors. Results: By 1 December 2021, 46.8% HCWs of ASUGI had received the booster, 37.2% were immunized only with two doses of COVID-19 vaccines, 6.0% only with one dose and 10.0% were unvaccinated. During 1 March 2020-31 May 2022, 3571 primary against 406 SARS-CoV-2 recurrent infections were counted among HCWs of ASUGI, 59.7% (=2130/3571) versus 95.1% (=386/406) of which occurring from 1 December 2021 through 31 May 2022, respectively. All HCWs infected by SARS-CoV-2 during 1 December 2021 through 31 May 2022 presented mild flu-like disease. Compared to staff working in administrative services, the risk of primary as well as recurrent SARS-CoV-2 infection increased in HCWs with patient-facing clinical tasks (especially nurses and other categories of HCWs) and in all clinical wards but COVID-19 units and community health services. Regardless of the number of swab tests performed during the study period, primary infections were less likely in HCWs immunized with one dose of COVID-19 vaccine. By contrast, the risk of SARS-CoV-2 re-infection was significantly lower in HCWs immunized with three doses (aHR = 0.58; 95%CI: 0.41; 0.80). During the study period, vaccine effectiveness (VE = 1-aHR) of the booster dose declined to 42% against re-infections, vanishing against primary SARS-CoV-2 infections. Conclusions: Though generally mild, SARS-CoV-2 infections and re-infections surged during the Omicron transmission period. Compared to unvaccinated colleagues, the risk of primary SARS-CoV-2 infection was significantly lower in HCWs immunized just with one dose of COVID-19 vaccines. By Italian law, HCWs immunized only with one dose were either suspended or re-assigned to job tasks not entailing patient facing contact; hence, while sharing the same biological risk of unvaccinated colleagues, they arguably had a higher level of protection against COVID-19 infection. By contrast, SARS-CoV-2 re-infections were less likely in HCWs vaccinated with three doses, suggesting that hybrid humoral immunity by vaccination combined with natural infection provided a higher level of protection than vaccination only. In this stage of the pandemic, where SARS-CoV-2 is more infectious yet much less pathogenic, health protection measures in healthcare premises at higher biological risk seem the rational approach to control the transmission of the virus.
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Hill HJ, Uppal T, Hau D, Pandit SG, Arias-Umana J, Foster AJ, Gorzalski A, Pflughoeft KJ, Burnham-Marusich AR, Reed DE, Gates-Hollingsworth MA, Gumbleton L, Verma SC, AuCoin DP. Comparison of a Prototype SARS-CoV-2 Lateral Flow IMMUNOASSAY with the BinaxNOW TM COVID-19 Antigen CARD. Viruses 2022; 14:v14122609. [PMID: 36560613 PMCID: PMC9786212 DOI: 10.3390/v14122609] [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: 11/01/2022] [Revised: 11/18/2022] [Accepted: 11/21/2022] [Indexed: 11/25/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the virus responsible for the COVID-19 pandemic. From the onset of the pandemic, rapid antigen tests have quickly proved themselves to be an accurate and accessible diagnostic platform. The initial (and still most commonly used antigen tests) for COVID-19 diagnosis were constructed using monoclonal antibodies (mAbs) specific to severe acute respiratory syndrome coronavirus (SARS-CoV) nucleocapsid protein (NP). These mAbs are able to bind SARS-CoV-2 NP due to high homology between the two viruses. However, since first being identified in 2019, SARS-CoV-2 has continuously mutated, and a multitude of variants have appeared. These mutations have an elevated risk of leading to possible diagnostic escape when using tests produced with SARS-CoV-derived mAbs. Here, we established a library of 18 mAbs specific to SARS-CoV-2 NP and used two of these mAbs (1CV7 and 1CV14) to generate a prototype antigen-detection lateral flow immunoassay (LFI). A side-by-side analysis of the 1CV7/1CV14 LFI and the commercially available BinaxNOWTM COVID-19 Antigen CARD was performed. Results indicated the 1CV7/1CV14 LFI outperformed the BinaxNOWTM test in the detection of BA.2, BA.2.12.1, and BA.5 Omicron sub-variants when testing remnant RT-PCR positive patient nasopharyngeal swabs diluted in viral transport media.
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Affiliation(s)
- Haydon J. Hill
- Department of Microbiology and Immunology, Reno School of Medicine, University of Nevada, Reno, NV 89557, USA
| | - Timsy Uppal
- Department of Microbiology and Immunology, Reno School of Medicine, University of Nevada, Reno, NV 89557, USA
| | - Derrick Hau
- Department of Microbiology and Immunology, Reno School of Medicine, University of Nevada, Reno, NV 89557, USA
| | - Sujata G. Pandit
- Department of Microbiology and Immunology, Reno School of Medicine, University of Nevada, Reno, NV 89557, USA
| | - Jose Arias-Umana
- Department of Microbiology and Immunology, Reno School of Medicine, University of Nevada, Reno, NV 89557, USA
| | - Abigail J. Foster
- Department of Microbiology and Immunology, Reno School of Medicine, University of Nevada, Reno, NV 89557, USA
| | | | | | | | - Dana E. Reed
- Department of Microbiology and Immunology, Reno School of Medicine, University of Nevada, Reno, NV 89557, USA
| | | | | | - Subhash C. Verma
- Department of Microbiology and Immunology, Reno School of Medicine, University of Nevada, Reno, NV 89557, USA
| | - David P. AuCoin
- Department of Microbiology and Immunology, Reno School of Medicine, University of Nevada, Reno, NV 89557, USA
- DxDiscovery Incorporated, Reno, NV 89557, USA
- Correspondence:
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