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Updated on August 10, 2022 4:58 pm
All countries
Updated on August 10, 2022 4:58 pm
All countries
Updated on August 10, 2022 4:58 pm

Global Statistics

All countries
Updated on August 10, 2022 4:58 pm
All countries
Updated on August 10, 2022 4:58 pm
All countries
Updated on August 10, 2022 4:58 pm
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How Long Should You Quarantine After Covid

The Cdc’s Communication Problem

How long to quarantine after COVID-19 exposure

Before health officials make big recommendations to the public, a lot happens behind the scenes. With vaccines, for example, an independent committee of scientists, doctors and other experts meet to go over safety and effectiveness data with a fine-tooth comb before guidance is issued to the public. These meetings, which have grappled with such important decisions as, for example, the use of Pfizer’s COVID-19 vaccine in kids, are technically open to the public but they’re not easy to track down unless you know exactly where to look.

The advice that comes out of these meetings, too, can be hard to parse, as with the CDC’s confusing early booster guidance and its new isolation guidance.

“Public health creates guidance for our populations,” Labus notes. “It just is difficult to message these things — we don’t always make the same recommendations for everybody.”

But given the criticism the CDC faced in its execution and delivery of the new isolation guidelines, it’s likely an issue the agency will address. In fact, as NPR reported, the CDC has expressed interest in doing more media telebriefings, outside of Walensky’s regular appearances on the White House COVID-19 Response team briefings, which were infrequent during 2021.

But the public scrutiny of the CDC’s latest isolation guidance did not go unheard by Walensky.

CNET has reached out to the CDC and Delta Air Lines for comment.

Who Must Stay At Home To Prevent The Spread Of Covid19

  • People with COVID19
  • People with symptoms of COVID19 who haven’t been tested or are waiting for their test results
  • People who had Close Contact to someone with COVID19 and are not .

Up-to-Date on Vaccination means either two weeks have passed since completing primary series, AND you are not yet eligible for a booster dose OR you have received a booster dose.

How Long Does Quarantine Last

See DOHs guidance What to do if you were potentially exposed to someone with COVID-19 for more information.

You should quarantine at home for at least 5 days* after your last contact with the person with COVID-19. You can leave quarantine so long as you dont develop symptoms and continue to wear a well-fitting mask when around others at home and in public through day 10.

*If you cannot wear a well-fitting mask: you should quarantine at home for 10 days after your last contact with the person with COVID-19.

Monitor your symptoms during this time, and if you have any COVID-19 symptoms, isolate and get tested.

You do not need to quarantine if you:

  • Are up to date on your COVID-19 vaccines, including booster and additional doses if eligible, based on age and health status.
  • If you completed your primary series and are not yet eligible for your booster, you must have received the final dose in your primary series at least 2 weeks before exposure to the person with COVID-19 in order to not need to quarantine.
  • Tested positive for COVID-19 with a viral test within the previous 90 days and recovered.
  • COVID-19 vaccines must be authorized for emergency use, licensed, or otherwise approved by the FDA or listed for emergency use or otherwise approved by the World Health Organization.

    While you do not need to quarantine, you should take the following steps:

  • Watch for symptoms for 10 days after your last contact with the person with COVID-19.
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    If You Develop Fever Or Any Of The Symptoms Listed Above:

    severe illnessincreases with ageimmune-suppressed or have underlying health conditions such as heart, kidney or lung disease, obesity, or diabetesIf symptoms worsen, especially if you have difficulty breathing, seek medical care immediately.

    Cdc Updates Recommendations With Alternatives To Prevent Coronavirus Spread

    Anthony Hopkins Gets COVID

    by Rachel Nania, AARP, Updated December 3, 2020

    En español | Americans who may have been exposed to the coronavirus now have a few different quarantine options that can help prevent the spread of COVID-19 in the absence of symptoms or before their onset.

    The Centers for Disease Control and Prevention has long recommended that people who come into close contact with someone who has COVID-19 stay home and away from others for 14 days. This still remains the gold standard however, on Dec. 2, the CDC introduced two shorter alternatives to its quarantine guidelines.

    Health officials now say a 10-day quarantine period is sufficient if the person in quarantine experiences no symptoms of COVID-19 during that time. Whats more, quarantine can end after seven days if the person tests negative for COVID-19 and has no symptoms.

    Reducing the length of quarantine may make it easier for people to take this critical public health action by reducing the economic hardship associated with a longer period, especially if they cannot work during that time, CDC COVID-19 incident manager Henry Walke said in a news conference. In addition, a shorter quarantine period can lessen stress on the public health system and communities, especially when new infections are rapidly rising.

    After ending an early quarantine, people still need to look out for COVID-19 symptoms for a full 14 days after exposure to the virus.

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    What Should I Do If I Test Positive After Day 10 Of My Isolation

    You should not test again after the end of your isolationwhich is ten days for most peopleif you are feeling well and have had no fever for 24 hours. If you decide to test with a PCR test and the test is positive, it doesn’t mean you are infectious and you can leave isolation. If you decide to test with an antigen test and your test is positive, you may leave isolation the following day without testing again. For a few days after your positive antigen test, you should consider staying away from congregate settings and people who are at high risk for severe COVID, as well as wearing a well-fitted mask indoors.

    What If I’ve Been Exposed To Covid

    The CDC also tweaked its recommendations for whether you need to quarantine after you’ve had close contact with someone with COVID-19 . The changes are mostly based on the CDC’s consideration of who’s “up to date” on their vaccinations. You’re considered up to date if you’ve gotten your booster shot after becoming eligible, or if you’re immunocompromised and have received your recommended additional dose . You’re also up to date if you are fully vaccinated but aren’t yet eligible for a vaccine .

    If you’re up to date on COVID-19 shots and are exposed to COVID-19, you don’t need to quarantine. You also don’t need to quarantine if you’ve had a positive COVID-19 test within 90 days.

    However, if you’re unvaccinated or aren’t up to date on your booster shots, you should quarantine and stay home for five days following your exposure.

    Regardless of how many shots you’ve had, you should avoid hanging out with people at high risk for COVID-19 for 10 days following your exposure, and you should also avoid travel and mask up during that time. And regardless of your symptoms or your vaccination status, you should get tested for COVID-19 at least five days after you had an exposure.

    Whether you need to stay away from others and quarantine after being exposed to COVID-19 depends on whether you’ve received all the COVID-19 shots you’re eligible for, including boosters.

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    I Am Fully Vaccinated And Was Exposed To Covid

    If you are fully vaccinated and have been in close contact with someone who has COVID-19 , you should seek testing 5-7 days after exposure, and monitor for symptoms for 14 days after exposure. You do not need to quarantine or isolate unless you develop symptoms.

    It is also important that you wear a mask in indoor public places. Masking is particularly important for people exposed to COVID-19 to avoid infecting others.

    If you test negative, continue to monitor for symptoms for 14 days after exposure.

    If you have symptoms within 14 days after exposure, while waiting for your test result.

    If you test positive for COVID-19, isolate and follow the instructions at

    You can also use this calculator tool external link to find out if you should quarantine or isolate, and for how long.

    If You Develop Severe Symptoms

    Do fully vaccinated people still have quarantine after COVID-19 exposure?

    Call 911 or your local emergency number if you develop severe symptoms, such as:

    • trouble breathing or severe shortness of breath
    • persistent pressure or pain in the chest
    • new onset of confusion
    • difficulty waking up or staying awake
    • pale, grey or blue-coloured skin, lips or nail beds

    If you call an ambulance, tell the dispatcher that you have or may have COVID-19.

    If using a private vehicle to the hospital, call ahead to let them know that that you have or may have COVID-19. Follow any directions provided.

    While travelling in a private vehicle, follow strict individual public health measures to reduce the risk of transmission and:

    • wear a respirator unless experiencing difficulty breathing
    • all other passengers should also wear a respirator
  • minimize the number of passengers in the vehicle
  • sit in the back seat on the opposite side from the driver to maximize the physical distance between you
  • in larger vehicles, sit in the furthest row away from the front
  • keep all of your car windows fully open to improve ventilation if possible and safe to do so
  • Do not use public transportation to seek medical care unless you have no choice.

    Learn more about:

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    Positive Dont Test Again

    If you have gotten a positive result on a test, there is no point in testing any further.

    Health departments say if you test positive, dont keep testing repeatedly in search of a negative test, Amler said. Any positive test is a positive result, so you will just be wasting scarce test kits.

    The only time to retest is if you test negative after you have been exposed to someone with the virus or if you have symptoms. It can take time for the virus to build up to levels that are detectable.

    You want to test on day three and five or day four and day six after exposure, just to make sure you are negative, Wells said.

    If You Are Exposed To Covid And Are Unvaccinated Or Not Up

    -Quarantine at home for at least five days. If you have to be around other individuals in your household, wear a mask.

    -Even if you dont develop symptoms, get tested at least five days after the close contact. Per CDC guidelines, the day you are exposed to COVID is considered Day 0, and the first full day after that exposure is Day 1.

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    How To Report After You’ve Entered Canada

    Unless you qualified as a fully vaccinated traveller, the day after you arrive in Canada, all travellers, whether you travel by air, land or marine, must use ArriveCAN to:

    • confirm that youve arrived at the address you provided for your quarantine or isolation location
    • complete daily COVID-19 symptom self-assessments until the completion of your quarantine period or until you report symptoms

    If You Feel Sick Or Have Any Covid


    Everyone, whether or not you are up to date with COVID-19 vaccination , should:

    • Get tested right away. Visit COVID-19 Testing.
    • Stay home and away from others while you wait for your test result or if you have not been tested. Follow the how long to stay home section below.
    • Wear a well-fitting mask if you must be around others, even in your home. Follow Recommendations for Wearing Masks.
    • Wash your hands often, with soap and water. Wash for at least 20 seconds.If soap and water are not available, use hand sanitizer that is at least 60% alcohol.
    • Hand Hygiene
  • Cover Your Cough: cough or sneeze into your elbow or a tissue. Throw used tissues in the trash. Wash your hands.
  • If a lab test shows a negative result for the virus, but you have COVID-19 symptoms, stay home until your symptoms are better and you do not have a fever. COVID-19 symptoms can be a lot like symptoms of other illnesses.
  • Caregivers in settings other than health care may refer to CDC: Caring for Someone Sick at Home for more information on how to provide patient support.
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    What The Cdc Says About Retesting After A Positive Covid Test

    The CDC recommends staying home or away from others for five full days if you test positive for COVID , or if you have symptoms, regardless of vaccination status. If you absolutely have to be around other people , you should wear a well-fitted mask.

    After those five days, the CDC says you can end isolation if you didn’t develop symptoms, or if you developed symptoms but have been fever-free for 24 hours and your symptoms are improving. However, you still have to wear a mask for five more days, the CDC says.

    For both of these scenarios, the CDC says retesting yourself is an option, not a requirement: “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 five-day isolation period,” the CDC guidelines read. “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.” If you end up testing positive again, the CDC recommends you continue isolating until day 10.

    This guidance differs a bit if you had severe illness from COVID-19, or if you have a weakened immune system: In that case, the CDC says you may require additional viral testingmolecular or antigen teststo determine if and when it’s safe to be around others. In that case, the best course of action is to talk with your doctor to determine a testing plan.

    RELATED: How Soon After Having a COVID Breakthrough Infection Should You Get a Booster Shot?

    When Your Quarantine Starts And Ends

    Your quarantine period begins on the day that you arrive in Canada.

    For example, if you arrive at 8:15 am on Thursday, October 1, then Thursday is considered day 1 of your quarantine period. Your quarantine period would end 14 full days later, at 11:59 pm on Wednesday, October 14.

    If you begin to show symptoms during your quarantine, are exposed to another traveller with symptoms, or test positive for COVID-19, you must begin 10 days of isolation. Your first day of isolation is the day when you received your test result or the day when the symptoms started.

    If you do not have symptoms, you may choose to leave Canada before the end of the 14-day quarantine period. However, you must:

    • continue to quarantine yourself until your departure date
    • wear a mask when you depart Canada
    • comply with all regulations for the country of destination

    If you are in a federal designated quarantine facility, you must get authorization from a quarantine officer to leave.

    You may seek testing or medical treatment, provided that you resume your quarantine immediately afterwards.

    If you need assistance to access medical treatment, an exception may be made to allow one other person to accompany you, which can include a person who is also under mandatory quarantine.

    If the person who needs to visit a health care facility is a dependent child, the exception extends to one other person who accompanies them.

    Children qualify as dependants if they:

    • are under 22 years old and
    • dont have a spouse or partner

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    How Should Test To Stay Be Implemented In Light Of The Updated Shortened Quarantine And Isolation Timeframe

    Test to Stay can be implemented by schools as an alternative to traditional quarantine at home by establishing testing protocols to perform at least two tests during the period between close contact notification/TTS enrollment and day 7 after exposure, with the last test occurring 5-7 days after last close contact with a person confirmed with COVID-19. For more information about TTS, visit What You Should Know About COVID-19 Testing in Schools.

    How Long Will I Have To Isolate After A Positive Test

    When to End a COVID-19 Self-Quarantine

    At least 10 days. If you are:

    • Asymptomatic: Isolate for 10 days after the first positive test.
    • Symptomatic: Isolate for at least 10 days after symptom onset or until you have been fever free for at least 24 hours, whichever is longer.
    • Severely ill: Isolate for at least 10 days and up to 20 days after symptom onset.

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    What Is Close Contact

    Close contact is being within 6 feet of the sick person for a cumulative total of 15 minutes or more over a 24-hour period. Exposure starts from 2 days before the person had symptoms of illness until the time the patient is isolated.

    A cumulative total means all individual exposures added together over a 24-hour period .

    How Long Should You Quarantine Or Isolate

    First things first, those who believe they have been in contact with someone who has COVID and are unvaccinated should quarantine. Those who test positive, regardless of vaccination status, must isolate, according to the Centers for Disease Control and Prevention.

    Here’s the breakdown:


    Those who have been within 6 feet of someone with COVID for a cumulative total of at least 15 minutes over a 24-hour period should quarantine for five days if unvaccinated or more than six months out from their second dose, according to updated CDC guidance issued Monday.

    Once that period ends, they should partake in strict mask use for an additional five days.

    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.

    Prior to Monday, 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.

    Those who are both fully vaccinated and boosted do not need to quarantine if they are a close contact of someone with COVID, but should wear a mask for at least 10 days after exposure. The same goes for those who are fully vaccinated and not yet eligible for their booster shot.

    Local health authorities can also make the final determination about how long a quarantine should last, however. And testing can play a role.


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