Epidemiology of COVID-19 after Emergence of SARS-CoV-2 Gamma Variant, Brazilian Amazon, 2020-2021

Emerg Infect Dis. 2022 Mar;28(3):709-712. doi: 10.3201/eid2803.211993. Epub 2021 Dec 28.

Abstract

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Gamma variant has been hypothesized to cause more severe illness than previous variants, especially in children. Successive SARS-CoV-2 IgG serosurveys in the Brazilian Amazon showed that age-specific attack rates and proportions of symptomatic SARS-CoV-2 infections were similar before and after Gamma variant emergence.

Keywords: 2019 novel coronavirus disease; Amazon; Brazil; COVID-19; Gamma variant; SARS-CoV-2; coronavirus disease; respiratory infections; seroprevalence; severe acute respiratory syndrome coronavirus 2; viruses; zoonoses.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antibodies, Viral
  • Brazil / epidemiology
  • COVID-19*
  • Child
  • Humans
  • SARS-CoV-2*

Substances

  • Antibodies, Viral

Supplementary concepts

  • SARS-CoV-2 variants