The EFIS vaccination task force expert report. Issue 5 (5th May 2021) - Sarantopoulos, Alexandros; Brown, Doug; Wiedermann, Ursula; Dominguez, Carmen Alvarez; Bogdan, Christian; Gürsel, İhsan and Janković, Srđa and LeClerc, Claude and Locati, Massimo and Spurkland, Anne and Regateiro, Frederico and Van Damme, Pierre and Žvirblienė, Aurelija and Wensveen, Felix M.