The Delta variant of concern of severe acute respiratory syndrome coronavirus 2 is dominant worldwide. We report a case cluster caused by Delta sublineage B.1.617.2 harboring the mutation E484K in Italy during July 11-July 29, 2021. This mutation appears to affect immune response and vaccine efficacy; monitoring its appearance is urgent.
Breakthrough Infections of E484K-Harboring SARS-CoV-2 Delta Variant, Lombardy, Italy
Baj, Andreina
Primo
;Novazzi, FedericaSecondo
;Genoni, Angelo;Maggi, FabrizioUltimo
2021-01-01
Abstract
The Delta variant of concern of severe acute respiratory syndrome coronavirus 2 is dominant worldwide. We report a case cluster caused by Delta sublineage B.1.617.2 harboring the mutation E484K in Italy during July 11-July 29, 2021. This mutation appears to affect immune response and vaccine efficacy; monitoring its appearance is urgent.
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