Emergence and Spread of the SARS-CoV-2 Variant of Concern Delta across Different Brazilian Regions.

ABSTRACT: The SARS-CoV-2 variant of concern (VOC) Delta was first detected in India in October 2020. The first imported cases of the Delta variant in Brazil were identified in April 2021 in the southern region, followed by more cases in different regions during the following months. By early September 2021, Delta was already the dominant variant in the southeastern (87%), southern (73%), and northeastern (52%) Brazilian regions. This study aimed to understand the spatiotemporal dissemination dynamics of Delta in Brazil. To this end, we employed a combination of maximum likelihood (ML) and Bayesian methods to reconstruct the evolutionary relationship of 2,264 VOC Delta complete genomes (482 from this study) recovered across 21 of the 27 Brazilian federal units. Our phylogeographic analyses identified

SUBMITTER: Arantes I 

PROVIDER: S-EPMC9604183 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature