No time for complacency on COVID-19 in Europe.

"AF is Chair of and AC, DC, OD, IE, HJL, HL-Q, CN, and MK are members of the High-Level Expert Group for COVID-19 that has advised Hans Kluge since 2021. HK is the Regional Director of the WHO Regional Office for Europe. AC report grants from ViiV Healthcare, Gilead Sciences, and MSD and is the principal investigator of the OPTICOV trial. DC report institutional grant from Janssen and honoraria for lectures from Gilead and Pfizer. HJL reports grants from GSK, Merck, and a MacArthur Award for the Vaccine Confidence Project and honoraria for lectures from UNC and NYU. HL-Q was a member of the Secretariat of the Independent Panel for Pandemic Preparedness and Response. CN reports grants from the Engineering and Physical Sciences Research Council, the UK Department of Health and Social Care, the Natural Environment Research Council, NHS Scotland, and the UK Government for various projects on transmission of COVID-19; is a member of the UK Government SAGE Committee, Co-Chair of SAGE Environment and Modelling group, is a member of multiple UK and Scottish Government and NHS working groups on COVID-19, is a member of WHO ECAP, and a member of the Royal Academy of Engineering and Academy of Medical Sciences working groups on COVID-19 mitigation. MK is an independent Board member of ExevirBio, a biotechnology company designing therapeutic monoclonal antibodies against SARS Cov2. We declare no other competing interests."