When a public health incident is urgent, CDC's Health Alert Network (HAN) is its primary channel for getting cleared information out fast — to public information officers; federal, state, territorial, tribal and local public health staff; clinicians; and public health laboratories. The system sends messages, directly and indirectly, to more than one million recipients.
A national network built on local ones
CDC works with federal, state, territorial, tribal and city and county partners to build the protocols and relationships behind a single, interoperable platform for rapid distribution. HAN supplies both the health information and the infrastructure for passing it on at state and local levels, and most state HAN programs cover more than 90% of their populations. A typical message goes to state and local health officers, epidemiologists and laboratory directors, public information officers, HAN coordinators and clinician organizations.
Three levels of message
| Message | What it means |
|---|---|
| Health Alert | The highest level of importance about a public health incident |
| Health Advisory | Important information about an incident |
| Health Update | New information about an incident already reported |
(HAN also distributes Info Service messages.)
Getting the alerts
Anyone can receive an email when a new HAN message goes out: on CDC's Quick Subscribe page, enter an email address and register.
Sources
Based on "Health Alert Network (HAN)," Centers for Disease Control and Prevention; a work of the United States government in the public domain.
许可协议： CC0 1.0（公有领域） · 改编自 www.cdc.gov
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