The seroprevalence of severe acute respiratory syndrome coronavirus 2 in Delhi, India : a repeated population-based seroepidemiological study

© The Author(s) 2021. Published by Oxford University Press on behalf of Royal Society of Tropical Medicine and Hygiene..

BACKGROUND: Three rounds of a repeated cross-sectional serosurvey to estimate the change in seroprevalence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) were conducted from August to October 2020 in the state of Delhi, India, in the general population ≥5 y of age.

METHODS: The selection of participants was through a multistage sampling design from all 11 districts and 280 wards of the city-state, with multistage allocation proportional to population size. The blood samples were screened using immunoglobulin G (IgG) enzyme-linked immunosorbent assay kits.

RESULTS: We observed a total of 4267 (N=150 46), 4311 (N=17 409) and 3829 (N=15 015) positive tests indicative of the presence of IgG antibody to SARS-CoV-2 during the August, September and October 2020 serosurvey rounds, respectively. The adjusted seroprevalence declined from 28.39% (95% confidence interval [CI] 27.65 to 29.14) in August to 24.08% (95% CI 23.43 to 24.74) in September and 24.71% (95% CI 24.01 to 25.42) in October. On adjusted analysis, participants with lower per capita income, living in slums or overcrowded households and those with diabetes comorbidity had significantly higher statistical odds of having antibody positivity (p<0.01).

CONCLUSIONS: Nearly one in four residents in Delhi, India ≥5 y of age had the SARS-CoV-2 infection during August-October 2020.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:116

Enthalten in:

Transactions of the Royal Society of Tropical Medicine and Hygiene - 116(2022), 3 vom: 02. März, Seite 242-251

Sprache:

Englisch

Beteiligte Personen:

Sharma, Nandini [VerfasserIn]
Sharma, Pragya [VerfasserIn]
Basu, Saurav [VerfasserIn]
Saxena, Sonal [VerfasserIn]
Chawla, Rohit [VerfasserIn]
Dushyant, Kumar [VerfasserIn]
Mundeja, Nutan [VerfasserIn]
Marak, Zeasaly [VerfasserIn]
Singh, Sanjay [VerfasserIn]
Singh, Gautam [VerfasserIn]
Rustagi, Ruchir [VerfasserIn]

Links:

Volltext

Themen:

Antibodies, Viral
COVID-19
Journal Article
SARS-CoV-2
Serosurvey

Anmerkungen:

Date Completed 09.03.2022

Date Revised 09.03.2022

published: Print

Citation Status MEDLINE

doi:

10.1093/trstmh/trab109

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM328840262