The bivalent shots offered last fall included protection against the Omicron variant and an early Covid variant. is expected to make a more official recommendation to vaccine makers soon. The manufacturers will be expected to study the new formulas and submit data to the agency. spokesman said it expected that an updated vaccine would be available by late September, assuming the data support safe and effective vaccines. It remains unclear whether or when the vaccine makers or the F.D.A.

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Persons: ”, Peter Marks, Natalie Thornburg Organizations: Pfizer, Moderna, Centers for Disease Control, World Health Organization, Agency Locations: United States