The U.S. Food and Drug Administration (FDA) amended the emergency use authorizations (EUA) of the Moderna and Pfizer-BioNTech COVID-19 bivalent mRNA vaccines. This update included authorizing the current bivalent vaccines (original and omicron BA.4/BA.5 strains) to be used for all doses administered to individuals 6 months of age and older, including for an additional dose or doses for certain populations.
COVID-19 Vaccine Information
COVID-19 Vaccines
On April 18, 2023, the U.S. Food and Drug Administration (FDA) amended the emergency use authorizations (EUA) of the Moderna and Pfizer-BioNTech COVID-19 bivalent mRNA vaccines. This update included authorizing the current bivalent vaccines (original and omicron BA.4/BA.5 strains) to be used for all doses administered to individuals six months of age and older, including for an additional dose or doses for certain populations.
The monovalent Moderna and Pfizer-BioNTech COVID-19 vaccines are no longer authorized for use in the United States.
Most individuals may receive a single dose of a bivalent vaccine. Certain individuals may be eligible for additional doses depending on age and immunocompromised status. Most unvaccinated individuals may receive a single dose of a bivalent vaccine, rather than multiple doses of the original monovalent mRNA vaccines.
Latest Vaccine Updates
State Surgeon General Dr. Joseph A. Ladapo has announced new guidance regarding mRNA vaccines. The Florida Department of Health conducted an analysis through a self-controlled case series, which is a technique originally developed to evaluate vaccine safety. This analysis found that there is an 84% increase in the relative incidence of cardiac-related death among males 18-39 years old within 28 days following mRNA vaccination.
The U.S. Food and Drug Administration updated the emergency use authorizations of the Pfizer-BioNTech and the Moderna vaccine for administration of a single booster at least two months after a primary or booster dose is given to help protect against the COVID-19 omicron variant. Adults aged 18 and up are eligible to receive the Moderna booster, while anyone 12 and up are eligible to receive the Pfizer-BioNTech booster.
Based on currently available data, healthy children aged 5-17 may not benefit from receiving the currently available COVID-19 vaccine. The Florida Department of Health recommends that children with underlying conditions are the best candidates for the COVID-19 vaccine.
The U.S. Food and Drug Administration (FDA) revised the Emergency Use Authorizations (EUA) for Eli Lilly’s bamlanivimab-etesevimab and Regeneron’s REGEN-COV monoclonal antibody treatments, discontinuing their use by any U.S. state or jurisdiction.

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