The Food and Drug Administration (FDA) approved new Covid vaccines for the fall on Wednesday but only for those considered at higher risk, limiting the use of vaccines previously provided to nearly all Americans.

Health and Human Services Secretary Robert F. Kennedy Jr. announced Wednesday that the updated coronavirus vaccines are approved for adults over 65 and older, as well as children and adults with at least one medical condition that puts them at risk for severe illness.

Kennedy announced the approval in a post on X.

“The FDA has issued marketing authorization for those at greatest risk: Moderna (age 6 months and older), Pfizer (age 5 months and older), and Novavax (age 12 years and older),” Kennedy wrote. “These vaccines are available to all patients who choose them in consultation with their physicians.”

Kennedy also indicated that the emergency use authorizations for the vaccines had been revoked.

The only vaccines still authorized under an emergency authorization were for children 11 and younger. This move could make it more difficult for healthy children to get access to vaccines.

The vast majority of Americans are getting their coronavirus vaccines at pharmacies. Before this change, the CDC recommended COVID vaccination for everyone 6 months and older.

A COVID-19 vaccine can cost up to $140 without insurance, according to the CDC’s vaccine price list.

In nearly 20 states, pharmacists’ authority to offer vaccines is subject to federal immunization recommendations, so the new provision leaves it unclear whether Americans will be able to get a COVID vaccine whenever they want or whether insurers will cover the cost of vaccination.

COVID cases have been rising in parts of the US, particularly the South and California, driven by a new variant.