On Aug. 23, 2022, Moderna announced that it has completed its submission to the U.S. Food and Drug Administration (FDA) for emergency use authorization for its BA.4/BA.5 Omicron-targeting bivalent COVID-19 booster vaccine, mRNA-1273.222. The application is for a 50 ﾵg booster dose for adults 18 years of age and older, and is based on preclinical data as well as clinical trial data available for the company’s BA.1 Omicron-targeting bivalent booster candidate, mRNA-1273.214.