Health Alert Network (HAN)
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.
Health Alert Network (HAN) No. 438 – Increase in Fatal Drug Overdoses Across the United States Driven by Synthetic Opioids Before and During the COVID-19 Pandemic
12/17/2020 8:00 AM
Health Alert Network (HAN) No. 437 – Hurricane Delta—Clinical Guidance for Carbon Monoxide (CO) Poisoning
10/08/2020 7:30 PM
Health Alert Network (HAN) No. 436 – Recent HIV Clusters and Outbreaks Across the United States Among People Who Inject Drugs and Considerations During the COVID-19 Pandemic
10/05/2020 11:00 AM
Health Alert Network (HAN) No. 435 – Hurricane Laura—Clinical Guidance for Carbon Monoxide (CO) Poisoning
08/27/2020 3:30 PM
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
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. 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.
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