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.

Understanding Risk

Understanding Risk
Updated Aug. 11, 2022
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COVID-19 can affect anyone, and the disease can cause symptoms ranging from mild to very severe. We know that certain things can make people more likely to get very sick with COVID-19. We also know that certain settings and activities can make you more likely to get infected with the virus that causes COVID-19.

Understanding Your Risk Helps You Make Decisions

Understanding the risk of COVID-19 for yourself and those around you can help you make informed decisions to keep you safe and healthy. If you have risk factors, have a COVID-19 plan in place in case you get sick, and discuss that plan with your healthcare provider and those close to you. Learn what extra precautions you can take to protect yourself and others in settings that make you more likely to be exposed to COVID-19.

Risk of Getting COVID-19
Risk of Getting Very Sick

Information for Specific Groups

Older Adults People Who Are Immunocompromised
People with Asthma People with Medical Conditions
Archived Content

Search for and find historical COVID-19 pages and files. Please note the content on these pages and files is no longer being updated and may be out of date.

  • Visit archive.cdc.gov for a historical snapshot of the COVID-19 website, capturing the end of the Federal Public Health Emergency on June 28, 2023.
  • Visit the dynamic COVID-19 collection to search the COVID-19 website as far back as July 30, 2021.