U.S. health officials on Monday cut isolation restrictions for Americans who catch the coronavirus from 10 to five days, and similarly shortened the time that close contacts need to quarantine.
Centers for Disease Control and Prevention officials said the guidance is in keeping with growing evidence that people with the coronavirus are most infectious in the two days before and three days after symptoms develop.
The isolation rules are for people who are infected. They are the same for people who are unvaccinated, partly vaccinated, fully vaccinated or boosted.
—The clock starts the day you test positive.
—An infected person should go into isolations for five days, instead of the previously recommended 10.
—At the end of five days, if you have no symptoms, you can return to normal activities but must wear a mask everywhere — even at home around others — for at least five more days.
—If you still have symptoms after isolating for five days, stay home until you feel better and then start your five days of wearing a mask at all times.
The quarantine rules are for people who were in close contact with an infected person but not infected themselves.
For quarantine, the clock starts the day someone is alerted to they may have been exposed to the virus.
Previously, the CDC said people who were not fully vaccinated and who came in close contact with an infected person should stay home for at least 10 days.
Now the agency is saying only people who got booster shots can skip quarantine if they wear masks in all settings for at least 10 days.
That’s a change. Previously, people who were fully vaccinated — which the CDC has defined as having two doses of the Pfizer or Moderna vaccines, or one dose of the Johnson & Johnson vaccine — could be exempt from quarantine.
Now, people who got their initial shots but not boosters are in the same situation as those who are partly vaccinated or are not vaccinated at all: They can stop quarantine after five days if they wear masks in all settings for five days afterward.