Home Covid-19 CDC cuts the recommended isolation and quarantine periods for coronavirus infections

CDC cuts the recommended isolation and quarantine periods for coronavirus infections

A medical worker administers a coronavirus test at a new testing site at the Times Square subway station in New York City on Monday.

Scott Heins/Getty Images

Scott Heins/Getty Images

People who test positive for the coronavirus need to isolate themselves for only five days if they don’t show symptoms, the Centers for Disease Control and Prevention said Monday. This cuts in half the earlier recommendation of 10 days of isolation.

Data shows that the majority of coronavirus transmission “occurs early in the course of illness,” the CDC explained — generally in the one or two days before symptoms begin and two or three days after.

“Therefore, people who test positive should isolate for 5 days and, if asymptomatic at that time, they may leave isolation if they can continue to mask for 5 days to minimize the risk of infecting others,” the CDC said in a statement.

The CDC has also updated its recommended quarantine period for people exposed to the virus. It says unvaccinated people should quarantine for five days, followed by five days of “strict mask use.” Exposed people who are more than six months past their second dose of the Pfizer-BioNTech or Moderna vaccines, or two months out from a Johnson & Johnson vaccine, should also quarantine for five days.

People who have gotten their booster shot don’t need to quarantine after exposure but should wear a mask for the next 10 days.

Alejandro Brown receives a COVID-19 vaccine from a health care worker at a drive-through site in Miami on Dec. 16.

Joe Raedle/Getty Images

Joe Raedle/Getty Images

“The Omicron variant is spreading quickly and has the potential to impact all facets of our society,” said the CDC’s director, Dr. Rochelle Walensky, in a statement. “CDC’s updated recommendations for isolation and quarantine balance what we know about the spread of the virus and the protection provided by vaccination and booster doses. These updates ensure people can safely continue their daily lives.”

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The new guidance comes days after the CDC loosened rules for how long health care workers should isolate after infection with the coronavirus, from 10 days to seven days. If there were staffing shortages, that isolation time could be further reduced.

The next day, New York officials followed suit, reducing to five the number of days for health care workers to isolate after a positive coronavirus test. On NPR’s Morning Edition on Monday, Dr. Anthony Fauci praised the move.

Five days of quarantine should be enough for health care workers, Fauci said, adding: “That’s going to be under consideration of whether or not we want to diminish it” for the general public.

In the U.S. as of Monday, 242 million people have received at least one dose of a COVID-19 vaccine, 205 million are fully vaccinated and 66 million have received a booster, according to the CDC’s COVID Data Tracker.

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