U.S. FDA green lights Omicron-targeted COVID boosters ahead of revaccination campaign

The U.S. Food and Drug Administration on Wednesday authorized updated COVID-19 booster shots from Pfizer)/BioNTech and Moderna that target the dominant BA.4 and BA.5 Omicron subvariants, as the government prepares for a broad fall vaccination campaign that could begin within days. The new vaccines also include the original version of the virus targeted by all the previous COVID shots.