Pfizer, BioNTech say bivalent COVID-19 booster shot performs better against BA.5 omicron subvariant
(NEW YORK) -- American pharmaceutical company Pfizer and its German partner BioNTech announced Friday that a booster dose of their bivalent COVID-19 vaccine performs better against two circulating versions of the omicron variant, compared with a booster shot of their original vaccine.According to a... Read More.