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Ara J, Islam MS, Quader MTU, Das A, Hasib FMY, Islam MS, Rahman T, Das S, Chowdhury MAH, Das GB, Chowdhury S. Seroprevalence of Anti-SARS-CoV-2 Antibodies in Chattogram Metropolitan Area, Bangladesh. Antibodies (Basel) 2022; 11:antib11040069. [PMID: 36412835 PMCID: PMC9680400 DOI: 10.3390/antib11040069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/01/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022] Open
Abstract
Seroprevalence studies of COVID-19 are used to assess the degree of undetected transmission in the community and different groups such as health care workers (HCWs) are deemed vulnerable due to their workplace hazards. The present study estimated the seroprevalence and quantified the titer of anti-SARS-CoV-2 antibody (IgG) and its association with different factors. This cross-sectional study observed HCWs, in indoor and outdoor patients (non-COVID-19) and garment workers in the Chattogram metropolitan area (CMA, N = 748) from six hospitals and two garment factories. Qualitative and quantitative ELISA were used to identify and quantify antibodies (IgG) in the serum samples. Descriptive, univariable, and multivariable statistical analysis were performed. Overall seroprevalence and among HCWs, in indoor and outdoor patients, and garment workers were 66.99% (95% CI: 63.40-70.40%), 68.99% (95% CI: 63.8-73.7%), 81.37% (95% CI: 74.7-86.7%), and 50.56% (95% CI: 43.5-57.5%), respectively. Seroprevalence and mean titer was 44.47% (95% CI: 38.6-50.4%) and 53.71 DU/mL in the non-vaccinated population, respectively, while it was higher in the population who received a first dose (61.66%, 95% CI: 54.8-68.0%, 159.08 DU/mL) and both doses (100%, 95% CI: 98.4-100%, 255.46 DU/mL). This study emphasizes the role of vaccine in antibody production; the second dose of vaccine significantly increased the seroprevalence and titer and both were low in natural infection.
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Affiliation(s)
- Jahan Ara
- One Health Institute, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram 4225, Bangladesh
| | - Md. Sirazul Islam
- Department of Pathology and Parasitology, Faculty of Veterinary Medicine, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram 4225, Bangladesh
- COVID-19 Detection Laboratory, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram 4225, Bangladesh
| | - Md. Tarek Ul Quader
- Department of Anesthesiology and ICU, Chittagong Medical College Hospital, Chattogram 4203, Bangladesh
| | - Anan Das
- One Health Institute, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram 4225, Bangladesh
| | - F. M. Yasir Hasib
- Department of Pathology and Parasitology, Faculty of Veterinary Medicine, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram 4225, Bangladesh
- Department of Infectious Diseases and Public Health, City University of Hong Kong, Hong Kong SAR, China
| | - Mohammad Saiful Islam
- Department of Emergency and Accident, Imperial Hospital Limited, Chattogram 4202, Bangladesh
| | - Tazrina Rahman
- Department of Microbiology and Virology, Chittagong Medical College, Chattogram 4203, Bangladesh
| | - Seemanta Das
- One Health Institute, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram 4225, Bangladesh
| | | | - Goutam Buddha Das
- COVID-19 Detection Laboratory, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram 4225, Bangladesh
- Department of Animal Science and Nutrition, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram 4225, Bangladesh
| | - Sharmin Chowdhury
- One Health Institute, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram 4225, Bangladesh
- Department of Pathology and Parasitology, Faculty of Veterinary Medicine, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram 4225, Bangladesh
- COVID-19 Detection Laboratory, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram 4225, Bangladesh
- Correspondence:
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