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- Title
Anti-SARS-CoV-2 antibody kinetics up to 6 months of follow-up: Result from a nation-wide population-based, age stratified sero-epidemiological prospective cohort study in India.
- Authors
Misra, Puneet; Singh, Arvind Kumar; Mishra, Baijayantimala; Behera, Bijayini; Patro, Binod Kumar; Medigeshi, Guruprasad R.; Joshi, Hari Shanker; Ahmad, Mohammad; Chaturvedi, Pradeep Kumar; Chinnakali, Palanivel; Haldar, Partha; Bairwa, Mohan; Kharya, Pradeep; Dhodapkar, Rahul; Rath, Ramashankar; Guleria, Randeep; Rai, Sanjay Kumar; Kar, Sitanshu Sekhar; Kant, Shashi; Sarkar, Sonali
- Abstract
Repeated serological testing tells about the change in the overall infection in a community. This study aimed to evaluate changes in antibody prevalence and kinetics in a closed cohort over six months in different sub-populations in India. The study included 10,000 participants from rural and urban areas in five states and measured SARS-CoV-2 antibodies in serum in three follow-up rounds. The overall seroprevalence increased from 73.9% in round one to 90.7% in round two and 92.9% in round three. Among seropositive rural participants in round one, 98.2% remained positive in round two, and this percentage remained stable in urban and tribal areas in round three. The results showed high antibody prevalence that increased over time and was not different based on area, age group, or sex. Vaccinated individuals had higher antibody prevalence, and nearly all participants had antibody positivity for up to six months.
- Subjects
INDIA; IMMUNOGLOBULINS; COHORT analysis; SERODIAGNOSIS; AGE groups; LONGITUDINAL method; CITIES &; towns; RURAL geography
- Publication
PLoS ONE, 2023, Vol 18, Issue 12, p1
- ISSN
1932-6203
- Publication type
Article
- DOI
10.1371/journal.pone.0287807