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.
UPDATE
Travel requirements to enter the United States are changing, starting November 8, 2021. More information is available here.

Mask Guidance

Mask Guidance
Updated Mar. 21, 2022
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CDC is reviewing this page to align with updated guidance.

Wear a Mask When There is A Lot of COVID in Your Community

Wear a mask in public places where there are a lot of people around.

The mask must cover your nose.

The mask must cover your mouth.

The mask must fit under your chin.

The mask must be snug on your face.

Make sure it is easy to breathe.

If you visit someone who might get very sick from COVID-19, wear a mask when you are with them.

If you might get sick from COVID-19, talk to your doctor about when you should wear a mask.

You can wear a mask inside public places like grocery stores and movie theaters at any time.

You can wear a mask in outdoor public places like parks at any time.

If you have been with someone who is sick with COVID-19, take a self-test or go to a doctor to get tested for COVID-19.