June 15, 2024 4:45 PM

FDA asks COVID vaccine makers to target KP.2 strain, if feasible, for next shot

The U.S. health regulator has changed its strain recommendation for the 2024-25 COVID-19 vaccines, as it asked manufacturers to update the new shots to target the KP.2 variant, if feasible, instead of the JN.1 lineage it sought to target earlier. The Food and Drug Administration's change in recommendation, in an update dated Thursday, comes even as Moderna and Novavax makers of two of the three COVID vaccines submitted their applications to the agency for updating the fall 2024 season shots wit...