Vials of Pfizer vaccine against the coronavirus disease (COVID-19) are seen at the Messe Luzern fairground's...
Vials of Pfizer vaccine against the coronavirus disease (COVID-19) are seen at the Messe Luzern fairground's vaccination center, as the spread of the coronavirus disease (COVID-19) continues, in Lucerne, Switzerland December 23, 2020. REUTERS/Arnd Wiegmann