Received an Exposure Notification

Last updated December 9, 2021

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Receive a notification? Here’s what to do next: 

If you’re fully vaccinated*: 
  • Get tested as close to three to five days after the date of exposure (as indicated in the notification), even if you don’t have any symptoms. Find a testing site here. 
  • Wear a mask in indoor public spaces for 14 days from the date of exposure or until your test result comes back negative.
  • Fully vaccinated people do not need to quarantine, but watch for symptoms. Begin isolation if you start to develop symptoms. To learn more, visit How to Isolate.  
If you’re not vaccinated or not yet fully vaccinated: 
  • Start quarantine as soon as possible even if you do not have symptoms. Your first day of quarantine is the date of exposure as indicated in the notification. 
  • To learn more about how to quarantine and for how long, visit How to quarantine.

*People are considered fully vaccinated when more than two weeks have passed since their last recommended vaccine dose. If it has been more than two weeks since you received your second dose of Pfizer or Moderna, or your one dose of Johnson & Johnson, you are fully vaccinated.

Tested positive? 

You may be able to get treatment to help you recover. Treatment can help keep you from getting seriously sick and keep you out of the hospital. Learn more about treatment for COVID-19.

How do I know this notification is real?

An Exposure Notification will come as a push notification through the app (Android) or the phone (iPhone). You will never receive an Exposure Notification as a text message or phone call. Here’s an example of what the notification looks like:

Exposure screen samples

As a reminder, the Exposure Notification program does not record any personal information or location data. Everything is completely anonymous. To learn more about the program, visit the Exposure Notifications page.


What does this notification mean? 

If you received an Exposure Notification, it means that you and your phone have been in close proximity to someone who uses the technology and has tested positive for COVID-19 in the last 14 days. 

Find out more about how this technology works on the Exposure Notifications page.


I’m experiencing symptoms

Symptoms of COVID-19, especially early on, may be mild and feel like a common cold. Early symptoms could include a combination of cough, body aches, fatigue, and chest tightness. Some people may not develop fever or fever may not appear until several days into the illness. If you are experiencing symptoms, you should get tested for COVID-19 immediately, even if you are fully vaccinated or previously tested negative. To find a testing site near you, visit the Testing for COVID-19 page. Seek emergency medical care immediately if you have trouble breathing, pain or pressure in your chest that doesn’t go away, blue-tinged lips or face, or other serious symptoms. Notify your provider that you were exposed to COVID-19.


I have more questions

There are many resources available here on Colorado’s COVID-19 site that might answer your question. You can also contact your Local Public Health Agency or call CO-HELP.