A standardised protocol for relative SARS-CoV-2 variant severity assessment, applied to Omicron BA.1 and Delta in six European countries, October 2021 to February 2022

In conclusion, this study demonstrates the feasibility of conducting variant severity analyses in a multinational collaborative framework and adds evidence for the reduced severity of the Omicron BA.1 variant.

Source: Eurosurveillance - September 7, 2023 Category: Infectious Diseases Authors: Tommy Nyberg, Peter Bager, Ingrid Bech Svalgaard, Dritan Bejko, Nick Bundle, Josie Evans, Tyra Grove Krause, Jim McMenamin, Jo ël Mossong, Heather Mutch, Ajibola Omokanye, André Peralta-Santos, Pedro Pinto-Leite, Jostein Starrfelt, Simon Thelwall, Lampr Source Type: research