FILE PHOTO: Vials containing the Pfizer/BioNtech vaccine against the coronavirus disease (COVID-19) are displayed before being used at a mobile vaccine clinic, in Valparaiso, Chile, January 3, 2022. REUTERS/Rodrigo Garrido
FILE PHOTO: Vials containing the Pfizer/BioNtech vaccine against the coronavirus disease (COVID-19) are displayed before being used at a mobile vaccine clinic, in Valparaiso, Chile, January 3, 2022. REUTERS/Rodrigo Garrido