A young girl receives a vaccine as children are administered the first shot of the Pfizer COVID-19 vaccine at Hospital de Henares in Coslada, Madrid, Wednesday, December 15, 2022. Starting from Wednesday, Spain is trying to begin a speedy vaccination rollout for around 3.3 million children aged 5-11, the group that is leading contagion rates in the country and largely believed to be spreading new infections to their parents and grandparents. (Photo by Bernat Armangue/AP Photo)
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