The Biden administration has purchased an additional 50 million Pfizer-BioNTech COVID-19 vaccine doses for children to be delivered by the end of April next year, the drugmakers said in a statement on Thursday. “The U.S. will receive these additional doses to continue to support preparedness for pediatric vaccinations, including securing vaccines for children under 5 years of age, should they receive regulatory authorization,” Pfizer-BioNTech said in a press release. It comes after the Food and Drug Administration (FDA)’s Vaccines and Related Biological Products Advisory Committee voted on Tuesday to recommend its authorization for the vaccine in children aged 5 to 11. Seventeen members of the outside panel voted yes to recommend the authorization, and one abstained. If the FDA agrees with the panel’s recommendation the Centers for Disease Control and Prevention’s (CDC) vaccine advisory panel would subsequently decide who can receive a shot. The companies said they expect to then …