5/19/2026 CDC Lab Advisory: CDC Issues Alert for 2026 Hantavirus Outbreak: Testing for Potential Infection

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  • Level: Laboratory Advisory
  • Audience: Clinical Laboratory Professionals
LOCS: Laboratory Outreach Communication System

LOCS message

On May 18, 2026, the U.S Centers for Disease Control and Prevention (CDC) issued a Health Alert Network (HAN) Update on the 2026 Hantavirus Outbreak: Testing for Potential Infection. This HAN informs clinicians about testing and consultation that are available for Andes virus and other hantaviruses endemic to the United States, South America, and other nations. Hantavirus disease can cause severe illness and can be fatal. The infection risk to the American public remains extremely low.

Please review the HAN for recommendations and resources for clinicians and public health practitioners, health departments, laboratories, and for the public.

We encourage you to share this message widely with your network(s).

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Thank you,

The Laboratory Outreach Communication System
Laboratory Outreach Communication System (LOCS)
Office of Laboratory Systems and Response (OLSR)
Centers for Disease Control and Prevention (CDC)
LOCS@cdc.gov
www.cdc.gov/locs/php/about/