The US Food and Drug Administration has approved updated COVID-19 vaccines from Moderna, Pfizer-BioNTech, and Novavax-Sanofi targeting the XFG variant, with doses now being shipped to pharmacies and doctors' offices nationwide. The shots are approved for individuals aged 65 and older, as well as younger people with underlying health conditions, though eligible ages vary by manufacturer. The approvals come amid uncertainty over insurance coverage and official guidance, as the CDC's (US Centers for Disease Control and Prevention) vaccine advisory panel remains non-functional following a legal dispute over appointments made by health secretary Robert F. Kennedy Jr.