A healthcare worker prepares a dose of the "Comirnaty" Pfizer BioNTech COVID-19 vaccine against the coronavirus disease (COVID-19) at a vaccination centre in Ronda, Spain June 30, 2021.
A health-care worker prepares a dose of the "Comirnaty" Pfizer BioNTech COVID-19 vaccine against the coronavirus disease at a vaccination center in Ronda, Spain, on June 30, 2021. REUTERS/Jon Nazca
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