Pacific Northwest / Rocky MountainHIGH RISK

Hantavirus in Idaho

Comprehensive information about hantavirus cases, risk areas, and prevention resources for State of Idaho.

33

Total Reported Cases

1993-2024

12

Deaths

Fatality Rate: 36.4%

Sin Nombre Virus

Primary Virus Strain

2024

Last Reported Case

Idaho Hantavirus Map

Map showing Idaho location. Endemic areas include: Central Idaho mountains, Snake River Plain, Boise foothills, Northern Idaho forests, Eastern Idaho farmland.

High-Risk Areas in Idaho

Central Idaho mountains
Snake River Plain
Boise foothills
Northern Idaho forests
Eastern Idaho farmland

Primary Carrier: Deer Mouse (Peromyscus maniculatus)

Recent Outbreaks & Cases

20242 case(s)

Ada County

Cases linked to foothill property cleanup

20231 case(s)

Twin Falls County

Case associated with agricultural building

Prevention Tips for Idaho

Risk Level: high - Extra precautions strongly recommended in rural and mountain areas.

Be extremely cautious in mountain cabin settings
Ventilate closed structures thoroughly before entry
Use wet mopping - never sweep rodent droppings
Seal all gaps in mountain and rural homes
Control rodent populations in agricultural areas

Idaho Health Resources

Idaho Department of Health and Welfare

Idaho Poison Control Center

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