SARS-CoV-2 antibody prevalence in Brazil: results from two successive nationwide serological household surveys.

ABSTRACT:

Background

Population-based data on COVID-19 are essential for guiding policies. There are few such studies, particularly from low or middle-income countries. Brazil is currently a hotspot for COVID-19 globally. We aimed to investigate severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibody prevalence by city and according to sex, age, ethnicity group, and socioeconomic status, and compare seroprevalence estimates with official statistics on deaths and cases.

Methods

In this repeated cross-sectional study, we did two seroprevalence surveys in 133 sentinel cities in all Brazilian states. We randomly selected households and randomly selected one individual from all household members. We excluded children younger than 1 year. Presence of antibodies against SARS-Co

SUBMITTER: Hallal PC 

PROVIDER: S-EPMC7511212 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature