Linked transmission chains of imported SARS-CoV-2 variant B.1.351 across mainland France, January 2021
The SARS-CoV-2 variant with lineage B.1.351 clusters investigation team, Eurosurveillance, 26, 2100333 (2021), https://doi.org/10.2807/1560-7917.ES.2021.26.13.2100333