Pfizer and BioNTech have submitted an application to the U.S. Food and Drug Administration (FDA) requesting the authorization of their bivalent COVID-19 vaccine for use in people 12 years and older. The new formulation combines the original vaccine with one that specifically targets omicron BA.4 and BA.5 subvariants. “Given the … Continue reading Pfizer submits application for new booster targeting COVID-19 subvariants