The quarantine time period is based on how long it can take after a person has been exposed for their body to start to feel sick, experience symptoms, or register a positive test the incubation period for COVID People who have tested positive for COVID do not need to quarantine or get tested again for up to 3 months as long as they do not develop symptoms again.
People who develop symptoms again within 3 months of their first bout of COVID may need to be tested again if there is no other cause identified for their symptoms. How and When to Quarantine. What does it mean to quarantine? Stay home.
Do not go to work, school or public areas. Do not allow visitors, and separate yourself from others in your home unless they are also in quarantine. Do not handle pets or other animals. Test on day 5, if possible. If you develop symptoms get a test and stay home. After that continue to wear a mask around others for 5 additional days. Test on day 5 if possible.
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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. If an individual has access to a test and wants to test, the best approach is to use an antigen test 1 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 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 Follow additional recommendations for masking and restricting travel as described above. Negative results do not rule out SARS-CoV-2 infection and should not be used as the sole basis for treatment or patient management decisions, including infection control decisions.
To improve results, antigen tests should be used twice over a three-day period with at least 24 hours and no more than 48 hours between tests. Note that these recommendations on ending isolation do not apply to people with moderate or severe COVID or with weakened immune systems immunocompromised. See section below for recommendations for when to end isolation for these groups. 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.
Follow additional recommendations for masking and restricting travel described above. People who are severely ill with COVID 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 and for people with weakened immune systems. Consult with your healthcare provider about when you can resume being around other people. Close contacts of immunocompromised people — including household members — should also be encouraged to receive all recommended COVID vaccine doses to help protect these people.
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 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. This CDC guidance is meant to supplement—not replace—any federal, state, local, territorial, or tribal health and safety laws, rules, and regulations. These recommendations do not apply to healthcare professionals.
For guidance specific to these settings, see. You should wear a well-fitting mask around others for 10 days from the date of your last close contact with someone with COVID the date of last close contact is considered day 0. Get tested at least 5 days after you last had close contact with someone with COVID, and follow isolation recommendations if your test result is positive.
For people who have not received all recommended vaccine doses, including a booster dose for people 12 years of age or older, a 5-day quarantine period is recommended. Day 0 starts the day you had close contact with confirmed COVID, and day 1 is the first full day following the last close contact.
Wear a well-fitting mask for 10 days i. Get tested as soon as possible, but if you are unable to get a test, you should assume you have COVID or another respiratory illness. Isolate for at least 5 days to keep from spreading the virus to others. Monitor your symptoms. If you have an emergency warning sign including trouble breathing , seek emergency medical care immediately. Wear a well-fitting mask if you need to be around others at home during your 5-day isolation period.
You can end isolation after 5 full days i. 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 10 days. If an individual has access to a test and wants to test, the best approach is to use an antigen test towards the end of the 5-day isolation period.
If your test result is positive, you should continue to isolate until day 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 To limit spread to other people you are in close contact with e.
If you are symptomatic with COVID, CDC also recommends wearing a well-fitting mask for 10 days following your onset of symptoms to limit spread to others in the home or other close contacts. The significance of a positive or negative antigen test late in the course of illness is less clear; while a positive antigen test likely means a person has residual transmissible virus and can potentially infect others, a negative antigen test does not necessarily indicate the absence of transmissible virus.
As such, regardless of the test result, wearing a well-fitting mask is still recommended. Masks are designed to contain your respiratory droplets and particles. They also provide you some protection from particles expelled by others.
Respirators are designed to protect you from particles, including the virus that causes COVID, and in doing so they also contain your respiratory droplets and small particles, so you do not expose others. Masks and respirators can provide varying degrees of protection, with well-fitting NIOSH-approved respirators e. If a respirator is worn properly and can be used for extended periods, individuals may opt for the increased protection.
However, a poorly fitting or uncomfortable mask or respirator may be less effective if it is worn improperly or taken off frequently, which may reduce its intended benefit. Some situations e. So, you may want to consider the type of mask or respirator to wear depending on the situation.
Individuals may choose to use a basic disposable N95 respirator for personal use, instead of a mask. Employers who want to distribute N95 respirators to employees should follow an Occupational Safety and Health external icon OSHA respiratory protection program.
After the end of the 5-day quarantine or isolation period , continue to wear a well-fitting mask around others at home and in public for 5 additional days day 6 through day 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.
After you end quarantine or isolation, do not travel until 10 days after the start of quarantine or isolation. If you must travel on days , 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 for a full 10 days. Do not go to places where you are unable to wear a mask, such as restaurants, bars, and some gyms, until 10 days after the start of quarantine or isolation.
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