A medic prepares a dose of the Pfizer/BioNTech Covid-19 vaccine at the Clalit Healthcare Services in the Israeli city of Holon near Tel Aviv on June 21, 2021, as Israel begins coronavirus vaccination campaign for 12 to 15-year-olds. – Israel is now urging more 12- to 15-year-olds to be vaccinated, citing new outbreaks attributed to the more infectious Delta variant. (Photo by JACK GUEZ / AFP) (Photo by JACK GUEZ/AFP via Getty Images)