Important update: Healthcare facilities
CDC has updated select ways to operate healthcare systems effectively in response to COVID-19 vaccination. Learn more
UPDATE
Given new evidence on the B.1.617.2 (Delta) variant, CDC has updated the guidance for fully vaccinated people. CDC recommends universal indoor masking for all teachers, staff, students, and visitors to K-12 schools, regardless of vaccination status. Children should return to full-time in-person learning in the fall with layered prevention strategies in place.
UPDATE
The White House announced that vaccines will be required for international travelers coming into the United States, with an effective date of November 8, 2021. For purposes of entry into the United States, vaccines accepted will include FDA approved or authorized and WHO Emergency Use Listing vaccines. More information is available here.

What to Do if You Have Been Around Someone With COVID-19

What to Do if You Have Been Around Someone With COVID-19
Updated May 17, 2023
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Stay Away from People Who Have COVID-19

Stay away from people who are sick with COVID-19.
People can spread COVID-19 when they talk.
People can spread COVID-19 when they cough.
People can spread COVID-19 when they sneeze.

Some people with COVID-19 feel fine.
People can spread COVID-19 even if they feel fine.
Stay away from people with COVID-19 even if they feel fine.

What to Do If You Were Around Someone Who Has COVID-19

Get tested if you were around someone with COVID-19.
Take a COVID-19 test at least 5 days after you were around that person.
Take a COVID-19 test even if you feel fine.

Watch for symptoms if you were around someone with COVID-19.
Watch for COVID-19 symptoms for 10 days.

Be cautious if you were around someone with COVID-19.
Wear a mask for 10 days around others in your home.
Wear a mask for 10 days around others in public.
Be extra careful around people who are likely to get very sick from COVID-19.

What to Do If Someone With COVID-19 Visited Your Home Recently

Let in air from outside to clear the air in your home.
Open doors to let in air from outside.
Open windows to let in air from outside.
Use fans to clear the air in your home.
Use a portable air cleaner to help filter the air in your home.
The best portable air cleaners are called “HEPA” cleaners.