Nurse Guillermo Monzon explains to a relative of Juan Perez the side effects after administering Pfaizer's...
Nurse Guillermo Monzon explains to a relative of Juan Perez the side effects after administering Pfizer's COVID-19 vaccine, in Telde, on the island of Gran Canaria, Spain March 31, 2021. Picture taken March 31, 2021. REUTERS/Borja Suarez