ASPHER statement: facing the fourth winter of the Covid-19 pandemic - Hrzic, R; Davidovitch, N; Barros, H; Lopes, H; Moreno, JMM; Mason-Jones, AJ; McCallum, A; Reid, J; Reintjes, R; Sheek-Hussein, M; Simon, J; Wong, BLH; et al. (Frontiers Media, 2022)