A federal advisory panel voted Tuesday to boost this fall's COVID-19 shots against the Omicron viral variant.
The Food and Drug Administration's advisory panel voted 19-2 to reformulate the booster vaccines against Omicron's BA.4 and BA.5 subvariants, which now account for half of all COVID-19 cases in the United States, according to the Centers for Disease Control and Prevention. While panel members said they wanted more data Tuesday, they felt comfortable the changes would be safe.