Information for the 2024-2025 Flu Season

The composition of flu vaccines has been updated. Flu vaccines for the U.S. 2024-2025 season will contain the following:

Egg-based vaccines

• an A/Victoria/4897/2022 (H1N1)pdm09-like virus;
• an A/Thailand/8/2022 (H3N2)-like virus; and (Updated)
• a B/Austria/1359417/2021 (B/Victoria lineage)-like virus.

Cell- or recombinant-based vaccines

• an A/Wisconsin/67/2022 (H1N1)pdm09-like virus;
• an A/Massachusetts/18/2022 (H3N2)-like virus; and (Updated)
• a B/Austria/1359417/2021 (B/Victoria lineage)-like virus.

All flu vaccines for the 2024-2025 season are anticipated to be trivalent in the United States. Trivalent flu vaccines are formulated to protect against three flu viruses (an A(H1N1) virus, an A(H3N2) virus, and a B/Victoria virus). Both trivalent and quadrivalent flu vaccines are expected to offer similar protection against the flu viruses they protect against. B/Yamagata flu viruses have not circulated in the population after March 2020, so protection from trivalent and quadrivalent flu vaccines is expected to be similar. More information about trivalent flu vaccines is available.

Getting Your Flu Vaccine for Free or at Low Cost

Most health care insurance plans cover the annual flu shot as preventive care. Flu vaccination is often available at no or low cost to people who do not have insurance.

For Children: 

• If your child is insured, most health care insurance plans cover flu vaccination at no cost to you. Check that your provider takes your child’s insurance.
• Flu vaccine is also available at no cost* to you through CDC’s Vaccines for Children (VFC) Program. A child must qualify for this program.
• The VFC program serves children through 18 years of age who meet at least one of the following criteria:
  • American Indian or Alaska Native (AI/AN)
  • Medicaid-eligible
  • Uninsured
  • Underinsured
• If your child is not insured, ask your child’s doctor if they are a VFC provider or you can contact your state or local health department to find a VFC provider.

For Adults:

• If you have insurance, your flu vaccine will be at no cost to you. Check that your provider takes your insurance.
• If the insurance does not cover flu vaccine or it has a fixed dollar limit or cap for vaccines, there may be options for no-cost or low-cost flu vaccination.
• If you don’t have insurance, there may be options for no-cost or low-cost flu vaccination.

Where can you go for no-cost or low-cost vaccines:

• Your health provider
• Pharmacies
• Health Resources & Services Administration (HRSA) supported health centers
• Employers, schools, and community organizations

You can also find flu vaccine at Vaccines.gov.

*You may be charged an office visit fee and/or admin fee