Detecting rapid spread of SARS- CoV-2 variants, France, january 26-february 16, 2021 Haim-Boukobza, S. Roquebert, B. Trombert-Paolantoni, S. Lecorche, E. Verdurme, L. Foulongne, V. /Selinger, Christian Michalakis, Y. Sofonea, M. T. Alizon, S. Variants of severe acute respiratory syndrome coronavirus 2 raise concerns regarding the control of coronavirus disease epidemics. We analyzed 40,000 specific reverse transcription PCR tests performed on positive samples during January 26-February 16, 2021, in France. We found high transmission advantage of variants and more advanced spread than anticipated. 2021 text https://www.documentation.ird.fr/hor/fdi:010082050 fdi:010082050 Haim-Boukobza S., Roquebert B., Trombert-Paolantoni S., Lecorche E., Verdurme L., Foulongne V., Selinger Christian, Michalakis Y., Sofonea M. T., Alizon S.. Detecting rapid spread of SARS- CoV-2 variants, France, january 26-february 16, 2021. 2021, 27 (5), 1496-1499 EN FRANCE