Hantavirus in Washington
Comprehensive information about hantavirus cases, risk areas, and prevention resources for State of Washington.
51
Total Reported Cases
1993-2024
18
Deaths
Fatality Rate: 35.3%
Sin Nombre Virus
Primary Virus Strain
2024
Last Reported Case
Washington Hantavirus Map
Map showing Washington location. Endemic areas include: Eastern Washington, Central Washington, Okanogan County, Columbia Basin, Spokane rural areas.
High-Risk Areas in Washington
Primary Carrier: Deer Mouse (Peromyscus maniculatus)
Recent Outbreaks & Cases
Grant County
Case linked to agricultural building exposure
Yakima County
Cases associated with orchard work
Prevention Tips for Washington
Risk Level: moderate - Standard precautions recommended, especially in rural settings.
Washington Health Resources
Washington State Department of Health
Washington Poison Center
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Track Hantavirus Cases Nationwide
View our interactive map and statistics dashboard for comprehensive hantavirus data.