Health Alert Network (HAN)

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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, tribal, and local public health practitioners; clinicians; and public health laboratories.

CDC’s HAN collaborates with federal, state, territorial, tribal, 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. 434 – Serious Adverse Health Events Associated with Methanol-based Hand Sanitizers
07/05/2020 7:15 PM


Health Alert Network (HAN) No. 433 – Detection of Ciprofloxacin-resistant, β-lactamase-producing Neisseria meningitidis Serogroup Y Isolates, United States, 2019–2020
06/18/2020 1:00 PM


Health Alert Network (HAN) No. 432 – Multisystem Inflammatory Syndrome in Children (MIS-C) Associated with Coronavirus Disease 2019 (COVID-19)
05/14/2020 4:45 PM


Health Alert Network (HAN) No. 431 – Severe Illness Associated with Using Non-Pharmaceutical Chloroquine Phosphate to Prevent and Treat Coronavirus Disease 2019 (COVID-19)
03/28/2020 11:00 AM


Health Alert Network (HAN) No. 430 – Information and Guidance about Global Travel on Cruise Ships, Including River Cruises, due to Coronavirus Disease 2019 (COVID-19)
03/15/2020 5:45 PM


Health Alert Network (HAN) No. 429 – Updated Guidance on Evaluating and Testing Persons for Coronavirus Disease 2019 (COVID-19)
03/08/2020 8:20 PM


Health Alert Network (HAN) No. 428 – Update and Interim Guidance on Outbreak of Coronavirus Disease 2019 (COVID-19)
02/28/2020 3:05 PM


Health Alert Network (HAN) No. 427 – Update and Interim Guidance on Outbreak of 2019 Novel Coronavirus (2019-nCoV)
02/01/2020 9:00 AM


Health Alert Network (HAN) No. 426 – Update and Interim Guidance on Outbreak of 2019 Novel Coronavirus (2019-nCoV) in Wuhan, China
01/17/2020 8:30 PM


Health Alert Network (HAN) No. 425 – Elevated Influenza Activity: Influenza B/Victoria and A(H1N1)pdm09 Viruses are the Predominant Viruses
01/10/2020 11:40 AM


Health Alert Network (HAN) No. 424 – Outbreak of Pneumonia of Unknown Etiology (PUE) in Wuhan, China
01/08/2020 4:15 PM


Latest News from Health Alert Network

Health Alert Network (HAN) No. 427 – Update and Interim Guidance on Outbreak of 2019 Novel Coronavirus (2019-nCoV)
02/01/2020 9:00 AM

Health Alert Network (HAN) No. 426 – Update and Interim Guidance on Outbreak of 2019 Novel Coronavirus (2019-nCoV) in Wuhan, China
01/17/2020 8:30 PM

Health Alert Network (HAN) No. 425 – Elevated Influenza Activity: Influenza B/Victoria and A(H1N1)pdm09 Viruses are the Predominant Viruses
01/10/2020 11:40 AM

Health Alert Network (HAN) No. 424 – Outbreak of Pneumonia of Unknown Etiology (PUE) in Wuhan, China
01/08/2020 4:15 PM

Health Alert Network (HAN) No. 423 – Guidance for Using Rapid Diagnostic Tests for Ebola in the United States
12/16/2019 2:00 PM

Health Alert Network (HAN) No. 422 – Hot Tub Displays and Legionella Risk—Guidance for Environmental and Public Health Practitioners
11/15/2019 2:30 PM

Health Alert Network (HAN) No. 421 – Severe Pulmonary Disease Associated with Using E-Cigarette Products
8/30/2019 9:35 AM

Health Alert Network (HAN) No. 420 – Nationwide Shortage of Tuberculin Skin Test Antigens: CDC Recommendations for Patient Care and Public Health Practice
6/6/2019 11:30 AM

Health Alert Network (HAN) No. 419 – Influenza Season Continues with an Increase in Influenza A(H3N2) Activity 3/28/2019 2:15 PM

Health Alert Network (HAN) No. 418 – Update: Widespread Outbreaks of Hepatitis A among People Who Use Drugs and People Experiencing Homelessness across the United States 3/25/2019 1:30 PM

Health Alert Network (HAN) No. 417 – Third Case of Rifampin/Penicillin-Resistant Strain of RB51 Brucella from Consuming Raw Milk 1/23/2019 2:30 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.
      
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.
      
Health Update: provides updated information regarding an incident or situation; unlikely to require immediate action.
      
Info Service: provides general public health information; unlikely to require immediate action.

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.

Page last reviewed: January 22, 2020