Covid-19 vaccines are about to become widely available again across the United States, following several weeks of confusion around who would be able to get them this fall. Uncertainty over federal vaccine policy had caused a temporary patchwork of access across the country, with shots being offered in some places and not others. This week, the Centers for Disease Control and Prevention issued new guidance around the use of Covid vaccines, dropping a broad recommendation for vaccination and instead leaving the choice up to individuals. Prior to this fall, the CDC universally recommended the Covid vaccine for anyone 6 months or older. Previously, Covid shots were indicated for anyone 6 months and older.