Pfizer and BioNTech have requested that the Food and Drug Administration authorize a COVID-19 booster shot for children ages 5-11. The companies announced Tuesday they submitted for an emergency use authorization from the FDA after a study showed a strong immune response to a booster shot among healthy children in that age group. Pfizer-BioNTech's vaccine is the only COVID-19 shot authorized for children. Children who are 5 to 11 years old and have already completed their primary series of two shots would be eligible to receive a booster six months after the last dose, if approved. Children in that age group get a 10-microgram dose, which is one-third of the dose given to adults. Click the link in our bio for the latest on COVID-19.