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Department of Health Services

Public Health Disease Control

Health Provider Alerts

California Health Alert Network (CAHAN)

The California Health Alert Network (CAHAN) is the official public health alerting and notification program for California, CAHAN is designed for emergency preparedness information sharing, distribution of pertinent public health related events and alerting materials, dissemination of treatment and prevention guidelines, coordinated disease investigation efforts, preparedness planning, and other initiatives that strengthen state and local preparedness. The priority health communication distribution through the health communication system is ranked into four different levels using the below levels of communications based on the noted definitions. 

Enrollment is limited to administration and select staff with emergency preparedness roles in State Agencies, Local He​​alth Jurisdictions and California Department of Public Health (CDPH) licensed Health Care Facilities.