Support WBURSome adults can now get a second shot of the bivalent COVID-19 vaccinePlay03:58Download AudioRob SteinPien HuangWill StoneUpdated April 19, 2023 ShareEven though the uptake of the omicron booster has been lackluster, federal officials have decided some adults can get a second shot. (Getty Images)This article was originally published on March 29, 2023.