Pfizer asked U.S. regulators Monday to expand use of its updated COVID-19 booster shot to children ages 5 to 11....
Pfizer
WASHINGTON (AP) — Federal health officials said Sunday that kid-sized shot of Pfizer’s COVID-19 vaccines appear to be safe and...
Three doses of Pfizer’s COVID-19 vaccine offer strong protection for children younger than 5, the company announced Monday. Pfizer plans...