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Colorado Health Alert Network (HAN)

The Colorado Health Alert Network (HAN) disseminates public health alerts and prevention guidelines to partners, providers, and key stakeholders. To sign up to receive HAN communications directly to your email, please register or sign in at the Colorado Notification System website.

Most HANs are publicly available on this webpage. HANs that are sent locally and not statewide and HANs that contain sensitive information will not be posted. To receive these HANs, please register at the link above.

HAN classifications

HAN Alert

Highest level of importance, warrants immediate action

HAN Advisory

Important information for a specific incident, may not require immediate action

HAN Update

Updated information about an incident or situation, unlikely to require immediate action

HAN Information

Information only, does not require action

HAN Test/Exercise/Drill

Used only during system tests

To report a disease or incident to CDPHE

To report a disease or an outbreak, visit the Report a Disease webpage.

To report another concern or emergency, resources are available at the Report a Concern or Emergency webpage.