# US FDA COVID-19 vaccine updates

> Live situation record from CLSTR: https://clstr.news/situations/us-fda-covid-19-vaccine-updates
> Updated: 2026-09-07T03:21:49.000Z. Sources: 28. Developments: 3.

The U.S. Food and Drug Administration (FDA) has approved updated COVID-19 vaccines for the 2026-2027 season to target the XFG subvariant of the JN.1 coronavirus lineage. The approved vaccines include mRNA formulations from Moderna and Pfizer-BioNTech, alongside a protein-based option from Novavax-Sanofi.

Eligibility for these updated shots is restricted to specific populations, including all adults aged 65 and older and individuals aged 5 to 64 with underlying health conditions—such as asthma, diabetes, obesity, or heart disease—that increase the risk of severe illness. 

These approvals occur amidst a shift in federal health policy under the Trump administration and Health and Human Services Secretary Robert F. Kennedy Jr., moving away from universal vaccine recommendations toward more restricted, individual-based decision-making. This policy change, coupled with legal challenges regarding vaccine advisory panel appointments, has prompted questions concerning insurance coverage and access for those not meeting high-risk criteria.

As of September 2026, the Centers for Disease Control and Prevention (CDC) reports rising COVID-19 activity across 47 U.S. states, with particularly high viral activity noted in Alaska, Hawaii, Nevada, Texas, and Utah. While overall respiratory activity remains low, health officials attribute the upward trend to the end of summer and the start of the school year. In response, authorities are urging high-risk groups—including seniors, pregnant individuals, and those with chronic conditions—to stay updated with vaccinations and practice improved hygiene and ventilation.

## Timeline

### 2026-09-07: COVID-19 cases rise across 47 U.S. states

COVID-19 cases are rising in 47 U.S. states. The FDA has released updated vaccines targeting the XFG variant for the 2026-27 season.

2 sources. https://clstr.news/cluster/covid-19-cases-rise-across-47-us-states

### 2026-08-31: FDA approves updated COVID-19 vaccines targeting XFG variant

The FDA has approved updated 2026-2027 COVID-19 vaccines from Moderna, Pfizer-BioNTech, and Novavax to target the XFG variant.

2 sources. https://clstr.news/cluster/fda-approves-updated-covid-19-vaccines-targeting-xfg-variant

### 2026-08-27: FDA approves updated COVID-19 vaccines for 2026-2027 season

The FDA has approved updated 2026-2027 COVID-19 vaccines from Moderna, Pfizer, and Novavax, targeting the XFG variant for seniors and high-risk individuals.

23 sources. https://clstr.news/cluster/fda-approves-updated-covid-19-vaccines-for-upcoming-season

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Cite as: US FDA COVID-19 vaccine updates. CLSTR, https://clstr.news/situations/us-fda-covid-19-vaccine-updates