Emerging Infectious Diseases (Jan 2022)
Cluster of SARS-CoV-2 Gamma Variant Infections, Parintins, Brazil, March 2021
Abstract
High case counts after the Gamma (P. 1) variant of severe acute respiratory syndrome coronavirus 2 emerged in Brazil raised concerns that previously infected persons might become reinfected. Investigation of a cluster of coronavirus disease cases in Parintins, in the Brazilian Amazon, suggested household transmission but did not identify high rates of reinfection.
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