Alpha (B.1.1.7) and Delta (B.1.617.2 – AY.40) SARS-CoV-2 variants present strong neutralization decay at M4 post-vaccination and a faster replication rates than D614G (B.1) lineage. Issue 3 (March 2022) - Lebourgeois, Samuel; Menidjel, Reyene; Chenane, Houssem Redha; Ferré, Valentine Marie; Collin, Gilles; Damond, Florence; Coppée, Romain; Yazdanpanah, Yazdan; Timsit, Jean-François; Houhou-Fidouh, Nadhira; Descamps, Diane; Charpentier, Charlotte; et al.