U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Health Alert Network (HAN)

CDC Stacks Public Health Publications

The 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, county, and city partners to develop protocols and stakeholder relationships that will ensure a robust interoperable platform for the rapid distribution of public health information. The items in this collection are archived past alerts. For the most up to date information, go to https://www.cdc.gov/han/index.html.

Showing 161 - 180 of 510 results
  • Acute hepatitis and liver failure following the use of a dietary supplement intended for weight loss or muscle building
    Public Domain
  • Recurrent nationwide shortage of tuberculin skin test antigen solutions  CDC recommendations for patient care and public health practice
    Public Domain
  • Investigational drug available directly from CDC for the treatment of freeliving ameba infections
    Public Domain
  • Nationwide voluntary recall of all products for sterile use from compounding pharmacy located in Cedar Park Texas
    Public Domain
  • Notice to healthcare providers and public health officials  Updated guidance for the evaluation of severe respiratory illness associated with Middle East Respiratory Syndrome coronavirus MERSCoV
    Public Domain
  • Variant influenza virus H3N2v infections
    Public Domain
  • Recommendations for laboratory testing for acetyl fentanyl and patient evaluation and treatment for overdose with synthetic opioids
    Public Domain
  • Nationwide shortage of doxycycline  Resources for providers and recommendations for patient care
    Public Domain
  • Human infections with avian influenza A H7N9 viruses
    Public Domain
  • Notice to health care providers  Updated guidelines for evaluation of severe respiratory illness associated with Middle East Respiratory Syndrome coronavirus MERSCoV
    Public Domain
  • Resources available for local and state public health officials  Preparing for and responding to bombing events
    Public Domain
  • Nationwide shortage of tuberculin skin test antigens  CDC recommendations for patient care and public health practice
    Public Domain
  • Human infections with novel influenza A H7N9 viruses
    Public Domain
  • Notice to health care providers  Updated guidelines for evaluation of severe respiratory illness associated with a novel coronavirus
    Public Domain
  • Notice to clinicians  Continued vigilance urged for fungal infections among patients who received contaminated steroid injections
    Public Domain
  • New carbapenemresistant Enterobacteriaceae warrant additional action by healthcare providers
    Public Domain
  • Recommendations for drug allocation tuberculosis prevention and patient care during isoniazid shortages
    Public Domain
  • Notice to clinicians  Summary of CDC recommendations for influenza antiviral medications
    Public Domain
  • Update  Multistate outbreak of fungal infections among persons who received injections with contaminated medication
    Public Domain
  • Update  Additional contamination identified in medical products from New England Compounding Center
    Public Domain