Steinegger, Benjamin; Burgio, Giulio; Rapisardi, Giacomo; … - 2022
Background: After the wild-strain of SARS-CoV-2 spread around the entire globe, we experienced the emergence of a series of new, more transmissible variants. Similarly to other regions, in Catalonia, during the beginning of summer 2021, the Delta variant (B.1.617.2) rapidly replaced the Alpha...