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You should stay home for at least five days after a Covid-19 exposure or infection in most situations, the Centers for Disease Control and Prevention said last month, cutting in half its previous 10-day guidance.
The guidelines come with a lot of caveats. Precisely what to do depends on factors including whether people are severely ill, their vaccination status and even sometimes their occupation. Isolation means staying home when you are sick or you tested positive, while quarantine refers to staying home if you have been exposed to Covid-19.
Getting a rapid test around day five of an infection before leaving isolation is optional in the CDC’s guidance. Yet modeling data suggests that about one-third of people are still infectious after day five, according to the CDC. Some public-health experts recommend that people test negative on a rapid antigen test before leaving isolation. People shouldn’t take a PCR test to leave isolation; the test is so sensitive that it can pick up traces of the virus after a person is no longer infectious.
People who were in close contact with someone with Covid-19 should get tested at least five days after exposure, even if they don’t develop symptoms.
Here are the basic trajectories for isolation or quarantine. Regardless of the particulars, everyone who tests positive for Covid-19 or comes into close contact with an infected person should maintain cautious behavior, including wearing a well-fitted mask and avoiding travel, eating in restaurants or being around others as much as possible for the full 10 days, the CDC says.
People should immediately isolate if they develop symptoms at any point in the process, the CDC says.
Are you worried you might have Covid-19?
Are you up-to-date on your
Covid-19 vaccinations?
Use cautious behavior
for five days.
Stay home for at least five days,
or longer if you still have symptoms.
Speak to a health provider
about other causes.
Stay home for at least five days,
or longer if you still have symptoms.
You can leave your home with cautious behavior
for the full 10 days. If you begin to show symptoms,
follow this guide again.
*If you first tested with a rapid antigen and got a negative result, you should either get a follow-up PCR test or wait a day or two and take a second antigen test.
Are you worried you might have Covid-19?
Are you up-to-date on your
Covid-19 vaccinations?
Use cautious behavior
for five days.
Stay home for at least five days,
or longer if you still have symptoms.
Speak to a health provider
about other causes.
Stay home for at least five days,
or longer if you still have symptoms.
You can leave your home with cautious behavior
for the full 10 days. If you begin to show symptoms,
follow this guide again.
*If you first tested with a rapid antigen and got a negative result, you should either get a follow-up PCR test or wait a day or two and take a second antigen test.
Are you worried you might have Covid-19?
Are you up-to-date
on your Covid-19
vaccinations?
Use cautious
behavior for
five days.
Stay home for at least
five days, or longer if you
still have symptoms.
Speak to a health
provider about
other causes.
Stay home for at least five days,
or longer if you still have symptoms.
You can leave your home with
cautious behavior for the full 10 days.
If you begin to show symptoms,
follow this guide again.
*If you first tested with a rapid antigen and got a negative result, you should either get a follow-up PCR test or wait a day or two and take a second antigen test.
Are you worried you might have Covid-19?
Are you up-to-date
on your Covid-19
vaccinations?
Use cautious
behavior for
five days.
Stay home for
at least five days,
or longer if you still
have symptoms.
Speak to a health
provider about
other causes.
Stay home for
at least five days,
or longer if you still
have symptoms.
You can leave your home
with cautious behavior for the
full 10 days. If you begin to show
symptoms, follow this guide again.
*If you first tested with a rapid antigen and got a negative result, you should either get a follow-up PCR test or wait a day or two and take a second antigen test.
Are you worried you might have Covid-19?
Are you up-to-date
on your Covid-19
vaccinations?
Use cautious
behavior for
five days.
Stay home for
at least five days,
or longer if you still
have symptoms.
Speak to
a health
provider
about other
causes.
Stay home for
at least five days,
or longer if you still
have symptoms.
You can leave your home
with cautious behavior for the
full 10 days. If you begin to show
symptoms, follow this guide again.
*If you first tested with a rapid antigen and got a negative result, you should either get a follow-up PCR test or wait a day or two and take a second antigen test.
The graphic is a general summary of the CDC’s guidance; individual circumstances and rules set by state or local officials as well as employers or schools might affect recommended actions.
Healthcare professionals are subject to a different set of recommendations, as are people in schools and some other settings including correctional facilities and homeless shelters.
If you have had a confirmed Covid-19 case within the past 90 days, the CDC says that you don’t need to quarantine or get a test if you have been exposed as long as you don’t develop symptoms and you follow other precautions , including wearing a well-fitted mask around others, for 10 days.
For people who were severely ill with Covid-19 or have a weakened immune system, the CDC recommends a minimum 10-, potentially up to 20-day isolation period; they might need to test to figure out when they might be able to be around others and should make those decisions in conversation with their healthcare providers, the CDC says.
For more information, check the CDC’s guidance on the topic here.
Write to Brianna Abbott [email protected]
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