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Health Alert Network (HAN)

Health Alert Network logo.

CDC's Health Alert Network (HAN) is CDC's primary method of sharing cleared information about urgent public health incidents with public information officers; federal, state, territorial, and local public health practitioners; clinicians; and public health laboratories.

CDC’s HAN collaborates with federal, state, territorial, and city/county partners to develop protocols and stakeholder relationships that will ensure a robust interoperable platform for the rapid distribution of public health information.

Latest News from Health Alert Network

Health Alert Network (HAN) No. 367 - CDC Ebola Response Update #3 8/22/2014 5:45 PM

Health Alert Network (HAN) No. 366 - CDC Ebola Update #2 8/21/2014 3:30 PM

Health Alert Network (HAN) No. 365 - CDC Ebola Update #1 8/13/2014 12:00 PM

Health Alert Network (HAN) No. 364 - Guidelines for Evaluation of US Patients Suspected of Having Ebola Virus Disease 8/1/2014 8:00:00 PM

Health Alert Network (HAN) No. 363 - Ebola Virus Disease Confirmed in a Traveler to Nigeria, Two U.S. Healthcare Workers in Liberia 7/28/2014 4:30:00 PM

Health Alert Network (HAN) No. 362 - Guidance to US Clinicians Regarding New WHO Polio Vaccination Requirements for Travel by Residents of and Long-term Visitors to Countries with Active Polio Transmission 6/2/2014 4:00:00 PM

Health Alert Network (HAN) No. 361 - Confirmed Middle East Respiratory Syndrome Coronavirus (MERS-CoV) Case in Indiana, 2014 5/3/2014 4:30:00 PM

Health Alert Network (HAN) No. 360 - Human Infection with Avian Influenza A (H5N1) Virus 1/15/2014 7:00:00 PM

Health Alert Network (HAN) No. 359 - Notice to Clinicians: Early Reports of pH1N1-Associated Illnesses for the 2013-14 Influenza Season 12/24/2013 5:30:00 PM

Health Alert Network (HAN) No. 358 - Notice to Public Health Officials and Clinicians: Recognizing, Managing, and Reporting Chikungunya Virus Infections in Travelers Returning from the Caribbean 12/13/2013 4:45:00 PM

Health Alert Network (HAN) No. 357 - Notice to Healthcare Providers: Recognizing and Reporting Serogroup B Meningococcal Disease Associated with Outbreaks at Princeton University and the University of California at Santa Barbara 11/27/2013 2:45:00 PM

Health Alert Network (HAN) No. 356 - Acute Hepatitis and Liver Failure Following the Use of a Dietary Supplement Intended for Weight Loss or Muscle Building 10/8/2013 5:00:00 PM

Health Alert Network (HAN) No. 355 - Recurrent Nationwide Shortage of Tuberculin Skin Test Antigen Solutions: CDC Recommendations for Patient Care and Public Health Practice 9/4/2013 5:00:00 PM

Health Alert Network (HAN) No. 354 - Investigational Drug Available Directly from CDC for the Treatment of Free-Living Ameba Infections 8/23/2013 2:30:00 PM

Health Alert Network (HAN) No. 353 - Nationwide Voluntary Recall of All Products for Sterile Use from Compounding Pharmacy Located in Cedar Park, Texas 8/14/2013 8:00:00 PM


HAN Outreach

CDC’s HAN is a strong national program, providing vital health information and the infrastructure to support dissemination at state and local levels, and beyond. The vast majority of the state-based HAN programs have over 90% of their populations covered under the umbrella of HAN. The HAN messaging system directly and indirectly transmits Health Alerts, Advisories, Updates, and Info Services to over one million recipients.

HAN Message Types

  • Health Alert: provides vital, time-sensitive information for a specific incident or situation; warrants immediate action or attention by health officials, laboratorians, clinicians, and members of the public; and conveys the highest level of importance.
    Example: HAN00001
  • Health Advisory: provides important information for a specific incident or situation; contains recommendations or actionable items to be performed by public health officials, laboratorians, and/or clinicians; may not require immediate action.
    Example: HAN00346
  • Health Update: provides updated information regarding an incident or situation; unlikely to require immediate action.
    Example: HAN00342
  • Info Service: provides general public health information; unlikely to require immediate action.
    Example: HAN00345

DISCLAIMER Use of trade names and commercial sources is for identification only and does not imply endorsement by the U.S. Department of Health and Human Services.

Links to non-Federal organizations are provided solely as a service to our users. Links do not constitute an endorsement of any organization by CDC or the Federal Government, and none should be inferred. The CDC is not responsible for the content of the individual organizations.

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