Existing booster shots hold up well against the omicron variant of Covid-19 and there’s no need yet to develop specialized vaccines to fight it, federal health officials said.
“Our booster vaccine regimens work against omicron,” said…
Existing booster shots hold up well against the omicron variant of Covid-19 and there’s no need yet to develop specialized vaccines to fight it, federal health officials said.
“Our booster vaccine regimens work against omicron,” said…