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FDA Tells Vaccine Makers to Target New COVID Variant for Fall

June 14, 2024


COVID vaccine makers will be advised to update their shots to target the KP.2 variant, an offshoot of the JN.1 variant that spread widely last winter, the U.S. Food and Drug Administration announced Thursday.

It’s a turnaround for the agency: The new recommendation follows an FDA advisory panel vote last week that unanimously recommended COVID vaccines target the older JN.1 variant this fall.

Following that vote, panel members and Dr. Peter Marks, the agency’s top vaccine regulator, differed on which variant the agency should choose to target. Most panel members chose JN.1, while Marks preferred selecting a newer strain, such as KP.2.