Other recommendations to slow the spread of the coronavirus, like wearing masks and social distancing, still apply.

People who have been fully vaccinated against Covid-19 do not need to quarantine if they are exposed to the coronavirus, the Centers for Disease Control and Prevention said Wednesday in updated guidance on its website.

Quarantine is typically recommended for healthy people who have been exposed to the virus. During quarantine, people are asked to isolate from others for one to two weeks to see whether they develop symptoms of Covid-19. By not exposing others, quarantining can help stop the spread of the disease.

In the updated guidance, the CDC said such quarantining is not necessary for fully vaccinated people within three months of having received their last doses as long as they do not develop any symptoms. “Fully vaccinated” means that at least two weeks have passed since a person has received the second dose of a two-dose vaccine or one dose of a single-dose vaccine.