Hantavirus in United States — 2026
Hantavirus in the United States — 2026 surveillance, live tracking
Overview
Live US hantavirus surveillance for 2026 is tracked daily on Hantapulse, aggregating CDC, state-health-department, and global news signals. The expected baseline for Sin Nombre virus hantavirus pulmonary syndrome is approximately 25–60 cases per year, concentrated in western and southwestern states — New Mexico, Colorado, Arizona, California, Washington, and Montana. Seoul virus surveillance remains at low background levels with periodic pet-rat-linked detections. See the live United States risk index and recent news feed for current activity.
United States baseline
Highest case counts in western and southwestern states (NM, CO, AZ, CA). Sin Nombre virus is the dominant strain.
Source: CDC Hantavirus Surveillance
Relevant strains
News from United States in 2026
Andes hantavirus outbreak highlights global spillover and transmission risks - News-Medical
As cruise passengers return to US, doctor says risk of hantavirus is low - KUSA.com
Hantavirus: what happens to cruise ship passengers now and will they quarantine? - The Guardian
US Passenger Tests Positive For Hantavirus After Evacuation From Cruise Ship (Latest Updates) - Forbes
Two US passengers isolated in biocontainment after hantavirus exposure - NewsNation
1 American returning from hantavirus-stricken cruise showing symptoms, another US passenger postive: HHS - New York Post
French national shows symptoms on return from hantavirus-hit ship - BBC
American evacuated from hantavirus-hit cruise ship tests positive - WRAL
References & primary sources
Other years tracked for United States
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Read more: Live United States tracker · Hantavirus strains · Historical outbreaks · Prevention