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Posted on: October 28, 2020

Colorado COVID-19 Notification System

Picture of phone with an alert

CO Exposure Notifications is a free and voluntary service that will be available to Android and Apple iPhone users across Colorado. The technology alerts participants who have been in proximity to someone with COVID-19 long enough to risk an infection. 
CO Exposure Notifications will complement existing statewide health safety protocols, without compromising the privacy of Coloradans. Exposure Notification systems like these are critical to preventing further spread of COVID-19. In models developed by Oxford University, researchers have estimated that even if only 15% of the population enables exposure notifications, regions could see a reduction in infections of 8% and deaths by 6%*.
When users enable the service, their smartphones will share anonymous tokens with other users through the phones’ Bluetooth technology. If another user tests positive for COVID-19 within a 14-day period and chooses to upload their results, users at risk of infection will receive an alert of potential exposure. Tokens are not associated with any phone number, name, location or IP address and they change every 15 minutes to add an extra layer of anonymity.
CO Exposure Notifications also provides individuals who receive an exposure alert with instructions on recommended next steps, including information on quarantine and contacting their local public health agency.

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