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.
Alternative Names
COVID-19 exposure; COVID-19 exposure - what to do
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.
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 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
References
Centers for Disease Control and Prevention website. Respiratory virus guidance. www.cdc.gov/respiratory-viruses/guidance/. Updated March 1, 2024. Accessed August 14, 2024.
Review Date:
2/22/2023
Reviewed By:
Frank D. Brodkey, MD, FCCM, Associate Professor, Section of Pulmonary and Critical Care Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team. Editorial update 04/26/2024.