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Yagci AK, Alci G, Guncu MM, Yilmaz OB, Tekin E, Cakir SE, Cebe B, Ozturk C, Sirikci O. Demographic Features and Laboratory Parameters Among Hospitalized Vaccinated Patients With COVID-19 in Istanbul, Turkey. INFECTIOUS DISEASES IN CLINICAL PRACTICE 2023. [DOI: 10.1097/ipc.0000000000001251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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Yadav P, Mohandas S, Sarkale P, Nyayanit D, Shete A, Sahay R, Potdar V, Baradkar S, Gupta N, Sapkal G, Abraham P, Panda S, Bhargava B. Isolation of SARS-CoV-2 B.1.1.28.2 (P2) variant and pathogenicity comparison with D614G variant in hamster model. J Infect Public Health 2022; 15:164-171. [PMID: 34959053 PMCID: PMC8690136 DOI: 10.1016/j.jiph.2021.12.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 11/23/2021] [Accepted: 12/13/2021] [Indexed: 12/18/2022] Open
Abstract
Background Considering the potential threat from emerging Severe Acute Respiratory Syndrome-Corona Virus-2 (SARS-CoV-2) variants and the rising COVID-19 cases, SARS-CoV-2 genomic surveillance is ongoing in India. We report herewith the isolation of the P.2 variant (B.1.1.28.2) from international travelers and further its pathogenicity evaluation and comparison with D614G variant (B.1) in hamster model. Methods Virus isolation was performed in Vero CCL81 cells and genomic characterization by next generation sequencing. The pathogenicity and host immune response of the isolate was assessed in Syrian hamster model and compared with B.1 variant. Results B.1.1.28.2 variant was isolated from nasal/throat swabs of international travelers returned to India from United Kingdom and Brazil. The B.1.1.28.2 variant induced body weight loss, viral replication in the respiratory tract and caused severe lung pathology in infected Syrian hamster model in comparison, with B.1 variant infected hamsters. The sera from B.1.1.28.2 infected hamsters efficiently neutralized the D614G variant virus whereas 6-fold reduction in the neutralization was seen in case of D614G variant infected hamsters’ sera with the B.1.1.28.2 variant. Conclusions B.1.1.28.2 lineage variant could be successfully isolated and characterization could be performed. Pathogenicity of the isolate was demonstrated in Syrian hamster model and the findings of neutralization reduction is of great concern and point towards the need for screening the vaccines for efficacy.
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Affiliation(s)
- Pragya Yadav
- Indian Council of Medical Research-National Institute of Virology (ICMR-NIV), Pune, Maharashtra, 411021, India.
| | - Sreelekshmy Mohandas
- Indian Council of Medical Research-National Institute of Virology (ICMR-NIV), Pune, Maharashtra, 411021, India
| | - Prasad Sarkale
- Indian Council of Medical Research-National Institute of Virology (ICMR-NIV), Pune, Maharashtra, 411021, India
| | - Dimpal Nyayanit
- Indian Council of Medical Research-National Institute of Virology (ICMR-NIV), Pune, Maharashtra, 411021, India
| | - Anita Shete
- Indian Council of Medical Research-National Institute of Virology (ICMR-NIV), Pune, Maharashtra, 411021, India
| | - Rima Sahay
- Indian Council of Medical Research-National Institute of Virology (ICMR-NIV), Pune, Maharashtra, 411021, India
| | - Varsha Potdar
- Indian Council of Medical Research-National Institute of Virology (ICMR-NIV), Pune, Maharashtra, 411021, India
| | - Shrikant Baradkar
- Indian Council of Medical Research-National Institute of Virology (ICMR-NIV), Pune, Maharashtra, 411021, India
| | - Nivedita Gupta
- Indian Council of Medical Research, V. Ramalingaswami Bhawan, P.O. Box No. 4911, Ansari Nagar, New Delhi, 110029, India
| | - Gajanan Sapkal
- Indian Council of Medical Research-National Institute of Virology (ICMR-NIV), Pune, Maharashtra, 411021, India
| | - Priya Abraham
- Indian Council of Medical Research-National Institute of Virology (ICMR-NIV), Pune, Maharashtra, 411021, India
| | - Samiran Panda
- Indian Council of Medical Research, V. Ramalingaswami Bhawan, P.O. Box No. 4911, Ansari Nagar, New Delhi, 110029, India
| | - Balram Bhargava
- Indian Council of Medical Research, V. Ramalingaswami Bhawan, P.O. Box No. 4911, Ansari Nagar, New Delhi, 110029, India
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Periyasamy B, Raja S, Periasamy D, Narayanasamy D, Periaswamy P, Vajiravelu S. Evaluation of serum ferritin and D-Dimer levels in COVID-19 patients of an Indian tertiary care setting. ARCHIVES OF MEDICINE AND HEALTH SCIENCES 2022. [DOI: 10.4103/amhs.amhs_125_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Banks JM, Capistrano K, Thakkar P, Ranade H, Soni V, Datta M, Naqvi AR. Current molecular diagnostics assays for SARS-CoV-2 and emerging variants. METHODS IN MICROBIOLOGY 2021; 50:83-121. [PMID: 38620738 PMCID: PMC8655725 DOI: 10.1016/bs.mim.2021.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Since the SARS-CoV-2 virus triggered the beginning of the COVID-19 pandemic, scientists, government officials, and healthcare professionals around the world recognized the need for accessible, affordable, and accurate testing to predict and contain the spread of COVID-19. In the months that followed, research teams designed, tested, and rolled out hundreds of diagnostic assays, each with different sampling methods, diagnostic technologies, and sensitivity levels. However, the contagious virus continued to spread; SARS-CoV-2 travelled through airborne particles and spread rapidly, despite the widening use of diagnostic assays. As the pandemic continued, hundreds of millions of people contracted COVID-19 and millions died worldwide. With so many infections, SARS-CoV-2 received many opportunities to replicate and mutate, and from these mutations emerged more contagious, deadly, and difficult-to-diagnose viral mutants. Each change to the viral genome presented potential added challenges to containing the virus, and as such, researchers have continued developing and improving testing methods to keep up with COVID-19. In this chapter, we examine several SARS-CoV-2 variants that have emerged during the pandemic. Additionally, we discuss a few major COVID-19 diagnostic technique categories, including those involving real-time PCR, serology, CRISPR, and electronic biosensors. Finally, we address SARS-CoV-2 variants and diagnostic assays in the age of COVID-19 vaccines.
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Affiliation(s)
- Jonathan M Banks
- Department of Periodontics, College of Dentistry, University of Illinois Chicago, Chicago, IL, United States
| | - Kristelle Capistrano
- Department of Periodontics, College of Dentistry, University of Illinois Chicago, Chicago, IL, United States
| | - Pari Thakkar
- Department of Periodontics, College of Dentistry, University of Illinois Chicago, Chicago, IL, United States
| | - Hemangi Ranade
- Amity Institute of Biotechnology, Amity University Rajasthan, Jaipur, Rajasthan, India
| | - Vaidik Soni
- Department of Periodontics, College of Dentistry, University of Illinois Chicago, Chicago, IL, United States
| | - Manali Datta
- Amity Institute of Biotechnology, Amity University Rajasthan, Jaipur, Rajasthan, India
| | - Afsar R Naqvi
- Department of Periodontics, College of Dentistry, University of Illinois Chicago, Chicago, IL, United States
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