Pfizer Booster Spurs Immune Response To New Omicron Subtypes
ATLANTA, Ga. (AP) -- Pfizer said its updated COVID-19 booster may offer some protection against newly emerging omicron mutants even though it's not an exact match. Few Americans ha…
ATLANTA, Ga. (AP) -- Pfizer said its updated COVID-19 booster may offer some protection against newly emerging omicron mutants even though it's not an exact match. Few Americans ha…