Reassessing Reported Deaths and Estimated Infection Attack Rate during the First 6 Months of the COVID-19 Epidemic, Delhi, India.
Emerg Infect Dis
; 28(4): 759-766, 2022 04.
Article
em En
| MEDLINE
| ID: mdl-35213800
ABSTRACT
India reported >10 million coronavirus disease (COVID-19) cases and 149,000 deaths in 2020. To reassess reported deaths and estimate incidence rates during the first 6 months of the epidemic, we used a severe acute respiratory syndrome coronavirus 2 transmission model fit to data from 3 serosurveys in Delhi and time-series documentation of reported deaths. We estimated 48.7% (95% credible interval 22.1%-76.8%) cumulative infection in the population through the end of September 2020. Using an age-adjusted overall infection fatality ratio based on age-specific estimates from mostly high-income countries, we estimated that just 15.0% (95% credible interval 9.3%-34.0%) of COVID-19 deaths had been reported, indicating either substantial underreporting or lower age-specific infection-fatality ratios in India than in high-income countries. Despite the estimated high attack rate, additional epidemic waves occurred in late 2020 and April-May 2021. Future dynamics will depend on the duration of natural and vaccine-induced immunity and their effectiveness against new variants.
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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Epidemias
/
COVID-19
Tipo de estudo:
Incidence_studies
/
Prognostic_studies
Limite:
Humans
País como assunto:
Asia
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article