Emergence, spread and characterisation of the SARS-CoV-2 variant B.1.640 circulating in France, October 2021 to February 2022

ConclusionEven though B.1.640 did not outcompete the Delta variant, its importation and continuous low-level spread raised concerns regarding its public health impact. The investigations informed public health decisions during the time that B.1.640 was circulating.

Source: Eurosurveillance - June 1, 2023 Category: Infectious Diseases Authors: Gwenola Picard, Lucie Fournier, Anna Maisa, Claire Grolhier, Souhaila Chent, Caroline Huchet-Kervalla, Jeanne Sudour, Ma ël Pretet, Laurence Josset, Sylvie Behillil, Justine Schaeffer, Laboratory group and COVID-19 Investigation Group Source Type: research