A pediatrician administers a dose of the Pfizer COVID-19 vaccine to 8-year-old Dimitri Marck at the National Velodrome in Saint-Quentin-en-Yvelines, west of Paris, France, Wednesday, December 22, 2021. Schoolchildren cling nervously to their parents as they entered a vast vaccinodrome west of Paris, then walked away proudly with a "vaccination diploma" as France ki
A pediatrician administrates a dose of the Pfizer COVID-19 vaccine to Dimitri Marck, 8 , at the National Velodrome in Saint-Quentin-en-Yvelines, west of Paris, France, Wednesday, Dec. 22, 2021. Schoolchildren clung nervously to their parents as they entered a vast vaccinodrome west of Paris, then walked proudly away with a "vaccination diploma" as France kicked off mass vaccinations of children age 5 to 11. (AP Photo/Michel Euler)