Testing for COVID-19

Version en Español

I feel sick or was exposed to COVID-19. When should I test?

Take steps now to prevent possible spread, including staying away from others.

If you feel sick or have symptoms: Get tested immediately.

If you were exposed to COVID-19: Get tested at least five full days after your last exposure – even if you don’t develop symptoms.

Need to go to a testing location?

Understanding My Results

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Here’s what you should do if you receive a positive COVID-19 test result: 

  1. Follow current CDC Respiratory Virus Guidelines.
  2. Tell your close contacts that you have COVID-19.
  3. Wear a well-fitting mask if you must be around others.

Treatments are available, and research shows they decrease your risk of hospitalization and death — if you get them in time. Don’t wait to see if your symptoms get worse. If you feel sick, even a little, take steps to get treated nowGetting treatment may cost nothing, so there’s no reason to delay. 

Note: Seek medical care immediately if you have trouble breathing or experience other warning signs.

While a positive test confirms you have an infection, a negative test only shows that it didn’t detect the virus but does not rule out an infection. So, here’s what you should consider after receiving a negative COVID-19 test result using an at-home test.

If you have symptoms:

  • Test again in 48 hours.
  • Consider talking with a healthcare provider. You may need to get tested for other respiratory illnesses.
  • Follow current CDC Respiratory Virus Guidelines

If you were exposed to someone with COVID-19: 

  • Test again in 48 hours.
  • If your second test is also negative, test again 48 hours later for a total of three tests.

Resume regular activities if: 

  • You were tested for another reason, like workplace screening.
  • You do not have known or suspected contact with someone who has COVID-19.
  • You have no symptoms. 

More resources

COVID-19 testing guidance flyer preview

Download and share our testing guidance flyer

  • Prevention actions
  • Knowing when to test
  • Choosing the right test

More languages: Spanish

More testing flyers to download and share

Still have questions about testing? Visit the CDC’s website for the latest information.