The SARS-CoV-2 lineage B.1.1.28 has been evolving in Brazil since February 2020, but the recent emergence of sub-lineages with convergent mutations in the spike (S) protein raises concern about the potential impact on viral infectivity and immune escape. The lineage P.1 (alias of B.1.1.28.1) is an emerging variant that harbours several amino acid mutations including S:K417T, S:E484K, and S:N501Y. This report describes the first confirmed case of reinfection with the P.1 lineage in a 29-years-old female resident in the Amazonas state, Brazil, previously infected with a B.1 lineage virus.

9th February 2021 • comment