Moderna seeks FDA nod for booster shot aimed at Omicron BA.4, BA.5

Moderna Inc sought U.S. authorization for its COVID-19 booster shot tailored against the BA.4 and BA.5 subvariants of Omicron and said if cleared it would be ready to deliver the doses in September. Its application with the U.S. Food and Drug Administration (FDA) is based on pre-clinical data for the so-called bivalent dose that contains the dominant BA.4/BA.5 variants along with the original coronavirus strain.