The FDA's decision is a win for vaccine makers Pfizer, Moderna and Novavax, which have all been developing versions of their Covid shots to target XBB.1.5.
XBB.1.5 accounted for nearly 40% of all Covid cases in the U.S. in early June, according to
That panel unanimously voted that new jabs should be monovalent and target a member of the XBB family. Advisors also generally agreed that targeting XBB.1.5 would be the most ideal option.The three companies have already been developing updated versions of their shots that target XBB.1.5. Preliminary data each company presented on Thursday suggests that those jabs produce strong immune responses against all XBB variants.
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