CDC has updated isolation and quarantine recommendations for the public. These recommendations do not apply to healthcare personnel and do not supersede state, local, tribal, of territorial laws, rules, and regulations.
People with COVID-19 should isolate for 5 days and if they are asymptomatic or their symptoms are resolving (without fever for 24 hours), follow that by 5 days of wearing a mask when around others.
Recommendations for people who are exposed to COVID-19 are also updated. If you are unvaccinated or more than 6 months out from your second mRNA dose (or more than 2 months after the J&J vaccine) and you are not yet boosted, CDC recommends a quarantine for 5 days followed by strict mask use for an additional 5 days. If a 5-day quarantine is not feasible, it is imperative that an exposed person wear a well-fitting mask at all times when around others for 10 days after exposure.
People who have received their booster shot do not need to quarantine following an exposure but should wear a mask for 10 days after the exposure. For all those exposed, best practice would also include a test for COVID-19 at day 5 after exposure. If symptoms occur, individuals should immediately quarantine until a negative test confirms symptoms are not attributable to COVID-19.