Pfizer asks U.S. to allow 4th COVID vaccine dose for seniors
WASHINGTON (AP) - Pfizer and its partner BioNTech asked U.S. regulators Tuesday to authorize an additional booster dose of their COVID-19 vaccine for seniors, saying data from Isra…
WASHINGTON (AP) - Pfizer and its partner BioNTech asked U.S. regulators Tuesday to authorize an additional booster dose of their COVID-19 vaccine for seniors, saying data from Isra…