MedMemos
August 2025
New COVID-19 Vaccine 2024-25 Formulation

On June 5, 2024, the Vaccines and Related Biological Products Advisory Committee (VRBAC) and FDA panel met and unanimously voted for the JN.1 strain for the new fall 2024-25 COVID-19 vaccine formulation. A week later, based on updated data, the FDA asked the vaccine manufacturers to focus on the KP.2 and KP.3 strains of the JN.1 lineage as they are becoming the more dominant strains. It is anticipated that the change requested by the FDA will not cause any delays in the manufacturing of the new formulations.

The vaccine manufacturers (Pfizer, Moderna) expect the new vaccine will be available mid to late August, while Novavax anticipates a slightly later release in September but still in time to begin the fall vaccine administrations once the final approval is received by the FDA. The current COVID-19 2023-24 vaccine is still approved for administration, likely for the remainder of the summer, however, production of the 2023-24 formulation has stopped as manufacturers gear for the new formulation.

Currently, Pfizer has stopped shipping all 2023-24 from Pfizer direct. Going forward, additional doses of Pfizer and Moderna may be obtained through regular wholesalers or vendors IF they have any more stock remaining. Once the 2023-24 is completely depleted from all Vendors, facilities should wait until the new formulation is available early fall.

Facilities are encouraged to review all patients who did not receive any vaccine or dose of the 2023-24 formula and administer it as a priority for those patients. For all others who have already received at least one dose of the 2023-24 formula in recent months, it may be beneficial to wait for the new formulation at the discretion of the healthcare provider and facility protocol.

The ACIP and CDC advisory group made official recommendations on June 27, 2024, for who should get the new vaccine in the fall. They continue to support vaccination against Covid-19 with one dose of the new 2024-25 formulation in all individuals ages 6 months and older irrespective of whether they were previously vaccinated for COVID-19.