If you have been exposed to the virus that causes COVID-19, you can spread the virus even if you don't show any symptoms. It is important to take precautions to protect others from the virus. You should take these steps whether you are vaccinated or not and even if you have had COVID-19 in the past.
Take Precautions Right Away
You can spread COVID-19 before you show symptoms. Some people with the illness never have symptoms, but can still spread the disease. However, there are ways to protect yourself and others from getting COVID-19. These include wearing a well-fitting face mask, frequent hand washing, and maintaining a 6 foot (2 meter) distance from others, especially when indoors.
To help prevent the spread of COVID-19, get an updated COVID-19 vaccine. Being vaccinated helps protect you from getting and spreading COVID-19. Being vaccinated can also help protect you from serious illness if you do get the virus.
If you do get COVID-19, learn what to do when you are sick.
When to Call the Doctor
You should contact your health care provider:
- If you have symptoms and think you may have been exposed to COVID-19
- If you have COVID-19 and your symptoms are getting worse
Call 911 or your local emergency number if you have:
- Trouble breathing
- Chest pain or pressure
- Confusion or inability to wake up
- Gray, blue, or pale lips or face
- Any other symptoms that are severe or concern you
Alternative Names
COVID-19 exposure; COVID-19 exposure - what to do
References
Centers for Disease Control and Prevention website. Respiratory illnesses: respiratory virus guidance. www.cdc.gov/respiratory-viruses/guidance/index.html. Updated March 1, 2024. Accessed December 24, 2024.
Centers for Disease Control and Prevention website. COVID-19: about COVID- 19. www.cdc.gov/covid/about/index.html. Updated June13, 2024. Accessed December 21, 2024.
Review Date 1/1/2025
Updated by: Linda J. Vorvick, MD, Clinical Professor Emeritus, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.