Ars Technica: FDA calls for fall boosters against BA.4/5 as subvariants take over US
Ars Technica: FDA calls for fall boosters against BA.4/5 as subvariants take over US. “On Thursday, the US Food and Drug Administration advised vaccine makers to reformulate COVID-19 booster shots for this fall. The boosters would target both the original strain of the pandemic coronavirus plus two new omicron subvariants—BA.4 and BA.5—which became the dominant versions of the virus circulating in the United States this week.”