FILE - This October 2021 photo provided by Pfizer shows kid-size doses of its COVID-19 vaccine in Puurs, Belgium. On Friday, Oct. 29, 2021, the Food and Drug Administration paved the way for children ages 5 to 11 to get Pfizer's COVID-19 vaccine. One more regulatory hurdle remains, as advisers to the Centers for Disease Control and Prevention will make more detailed recommendations on which youngsters should get vaccinated, with a final decision by the agency’s director expected shortly afterward. (Pfizer via AP, File)