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COVID-19 Quarantine and Isolation | CDC

COVID-19 Quarantine and Isolation | CDC

Isolation

Isolation is used to separate people with confirmed or suspected COVID-19 from those without COVID-19. People who are in isolation should stay home until it’s safe for them to be around others. At home, anyone sick or infected should separate from others, or wear a well-fitting mask when they need to be around others. People in isolation should stay in a specific “sick room” or area and use a separate bathroom if available. Everyone who has presumed or confirmed COVID-19 should stay home and isolate from other people for at least 5 full days (day 0 is the first day of symptoms or the date of the day of the positive viral test for asymptomatic persons). They should wear a mask when around others at home and in public for an additional 5 days. People who are confirmed to have COVID-19 or are showing symptoms of COVID-19 need to isolate regardless of their vaccination status. This includes:

  • People who have a positive viral test for COVID-19, regardless of whether or not they have symptoms.
  • People with symptoms of COVID-19, including people who are awaiting test results or have not been tested. People with symptoms should isolate even if they do not know if they have been in close contact with someone with COVID-19.

What to do for isolation

  • Monitor your symptoms. If you have an emergency warning sign (including trouble breathing), seek emergency medical care immediately.
  • Stay in a separate room from other household members, if possible.
  • Use a separate bathroom, if possible.
  • Take steps to improve ventilation at home, if possible.
  • Avoid contact with other members of the household and pets.
  • Don’t share personal household items, like cups, towels, and utensils.
  • Wear a well-fitting mask when you need to be around other people.

Learn more about what to do if you are sick and how to notify your contacts.

Ending isolation for people who had COVID-19 and had symptoms

If you had COVID-19 and had symptoms, isolate for at least 5 days. To calculate your 5-day isolation period, day 0 is your first day of symptoms. Day 1 is the first full day after your symptoms developed. You can leave isolation after 5 full days.

  • You can end isolation after 5 full days if you are fever-free for 24 hours without the use of fever-reducing medication and your other symptoms have improved (Loss of taste and smell may persist for weeks or months after recovery and need not delay the end of isolation​).
  • You should continue to wear a well-fitting mask around others at home and in public for 5 additional days (day 6 through day 10) after the end of your 5-day isolation period. If you are unable to wear a mask when around others, you should continue to isolate for a full 10 days. Avoid people who are immunocompromised or at high risk for severe disease, and nursing homes and other high-risk settings, until after at least 10 days.
  • If you continue to have fever or your other symptoms have not improved after 5 days of isolation, you should wait to end your isolation until you are fever-free for 24 hours without the use of fever-reducing medication and your other symptoms have improved. Continue to wear a well-fitting mask. Contact your healthcare provider if you have questions.
  • Do not travel during your 5-day isolation period. After you end isolation, avoid travel until a full 10 days after your first day of symptoms. If you must travel on days 6-10, wear a well-fitting mask when you are around others for the entire duration of travel. If you are unable to wear a mask, you should not travel during the 10 days.
  • Do not go to places where you are unable to wear a mask, such as restaurants and some gyms, and avoid eating around others at home and at work until a full 10 days after your first day of symptoms.

If an individual has access to a test and wants to test, the best approach is to use an antigen test1 towards the end of the 5-day isolation period. Collect the test sample only if you are fever-free for 24 hours without the use of fever-reducing medication and your other symptoms have improved (loss of taste and smell may persist for weeks or months after recovery and need not delay the end of isolation). If your test result is positive, you should continue to isolate until day 10. If your test result is negative,  you can end isolation, but continue to wear a well-fitting mask around others at home and in public until day 10. Follow additional recommendations for masking and restricting travel as described above.

1As noted in the labeling for authorized over-the counter antigen testsexternal iconexternal icon

Note that these recommendations on ending isolation do not apply to people with moderate or severe COVID-19 or with weakened immune systems (immunocompromised). See section below for recommendations for when to end isolation for these groups.

Ending isolation for people who tested positive for COVID-19 but had no symptoms

If you test positive for COVID-19 and never develop symptoms, isolate for at least 5 days. Day 0 is the day of your positive viral test (based on the date you were tested) and day 1 is the first full day after the specimen was collected for your positive test. You can leave isolation after 5 full days.

  • If you continue to have no symptoms, you can end isolation after at least 5 days.
  • You should continue to wear a well-fitting mask around others at home and in public until day 10 (day 6 through day 10). If you are unable to wear a mask when around others, you should continue to isolate for 10 days. Avoid people who are immunocompromised or at high risk for severe disease, and nursing homes and other high-risk settings, until after at least 10 days.
  • If you develop symptoms after testing positive, your 5-day isolation period should start over. Day 0 is your first day of symptoms. Follow the recommendations above for ending isolation for people who had COVID-19 and had symptoms.
  • Do not travel during your 5-day isolation period. After you end isolation, avoid travel until 10 days after the day of your positive test. If you must travel on days 6-10, wear a well-fitting mask when you are around others for the entire duration of travel. If you are unable to wear a mask, you should not travel during the 10 days after your positive test.
  • Do not go to places where you are unable to wear a mask, such as restaurants and some gyms, and avoid eating around others at home and at work until 10 days after the day of your positive test.

If an individual has access to a test and wants to test, the best approach is to use an antigen test1 towards the end of the 5-day isolation period. If your test result is positive, you should continue to isolate until day 10. If your test result is negative, you can end isolation, but continue to wear a well-fitting mask around others at home and in public until day 10. Follow additional recommendations for masking and restricting travel described above.

1As noted in the labeling for authorized over-the counter antigen testsexternal iconexternal icon

Ending isolation for people who were severely ill with COVID-19 or have a weakened immune system (immunocompromised)

People who are severely ill with COVID-19 (including those who were hospitalized or required intensive care or ventilation support) and people with compromised immune systems might need to isolate at home longer. They may also require testing with a viral test to determine when they can be around others. CDC recommends an isolation period of at least 10 and up to 20 days for people who were severely ill with COVID-19 and for people with weakened immune systems. Consult with your healthcare provider about when you can resume being around other people.

People who are immunocompromised should talk to their healthcare provider about the potential for reduced immune responses to COVID-19 vaccines and the need to continue to follow current prevention measures  (including wearing a well-fitting mask, staying 6 feet apart from others they don’t live with, and avoiding crowds and poorly ventilated indoor spaces) to protect themselves against COVID-19 until advised otherwise by their healthcare provider. Close contacts of immunocompromised people – including household members – should also be encouraged to receive all recommended COVID-19 vaccine doses to help protect these people.

Isolation in high-risk congregate settings

In certain high-risk congregate settings that have high risk of secondary transmission and where it is not feasible to cohort people (such as correctional and detention facilities, homeless shelters, and cruise ships), CDC recommends a 10-day isolation period for residents. During periods of critical staffing shortages, facilities may consider shortening the isolation period for staff to ensure continuity of operations. Decisions to shorten isolation in these settings should be made in consultation with state, local, tribal, or territorial health departments and should take into consideration the context and characteristics of the facility. CDC’s setting-specific guidance provides additional recommendations for these settings.

This CDC guidance is meant to supplement—not replace—any federal, state, local, territorial, or tribal health and safety laws, rules, and regulations.

Recommendations for Specific Settings

These recommendations do not apply to healthcare professionals. For guidance specific to these settings, see

Additional setting-specific guidance and recommendations are available.

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