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. 2023 Dec;29(12):2583-2586.
doi: 10.3201/eid2912.230880. Epub 2023 Nov 15.

Substantial Diversity in Cocirculating Omicron Lineages in Hospital Setting, Porto Alegre, Brazil

Tiago F Andreis, Vlademir V Cantarelli, Marcelo B da Silva, Mateus S Helfer, Flávia R Brust; GAIHN-HAI Team; Alexandre P Zavascki
Collaborators

Substantial Diversity in Cocirculating Omicron Lineages in Hospital Setting, Porto Alegre, Brazil

Tiago F Andreis et al. Emerg Infect Dis. 2023 Dec.

Abstract

We describe substantial variant diversity among 23 detected SARS-CoV-2 Omicron lineage viruses cocirculating among healthcare workers and inpatients (272 sequenced samples) from Porto Alegre, Brazil, during November 2022-January 2023. BQ.1 and related lineages (61.4%) were most common, followed by BE.9 (19.1%), first described in November 2022 in the Amazon region.

Keywords: BE.9; Brazil; COVID-19; Omicron; SARS-CoV-2; coronavirus disease; respiratory infections; severe acute respiratory syndrome coronavirus 2; vaccine-preventable diseases; viruses; zoonoses.

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Figures

Figure
Figure
Phylogenetic radial tree showing placement of 272 SARS-CoV-2 sequenced samples from healthcare workers and inpatients in Porto Alegre, southern Brazil, November 2022–January 2023. Data as of February 25, 2023.
See this image and copyright information in PMC

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