Earlier this week, that panel voted to recommend including some type of omicron-specific protection in the next set of COVID-19 boosters.
All of the COVID-19 vaccines and boosters we have now were developed to target the original strain of the virus from 2019.
But questions remained after the initial vote about which omicron subvariant the boosters should target and whether the shots should include protection against more than one strain. Thursday's update provides more clarity: After the vote and using the best evidence that's available now, the FDA advised manufacturers to develop modified vaccines that target BA.4 and BA.5 omicron subvariants in addition to the original strain, Dr. Peter Marks, M.D., Ph.D.
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