Mid-AtlanticLOW RISK

Hantavirus in Maryland

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

5

Total Reported Cases

1993-2024

2

Deaths

Fatality Rate: 40%

Sin Nombre Virus and related strains

Primary Virus Strain

2020

Last Reported Case

Maryland Hantavirus Map

Map showing Maryland location. Endemic areas include: Western Maryland mountains, Garrett County, Allegheny Mountain region, Rural Frederick County, Agricultural Eastern Shore.

High-Risk Areas in Maryland

Western Maryland mountains
Garrett County
Allegheny Mountain region
Rural Frederick County
Agricultural Eastern Shore

Primary Carrier: White-footed Mouse (Peromyscus leucopus)

Recent Outbreaks & Cases

20201 case(s)

Garrett County

Case linked to vacation cabin exposure

20181 case(s)

Washington County

Case associated with barn cleanup

Prevention Tips for Maryland

Risk Level: low - Cases are rare but precautions still advised in rural areas.

Be cautious when visiting Western Maryland cabins
Ventilate closed vacation homes before entering
Avoid disturbing rodent habitats in rural areas
Use wet cleaning methods for rodent droppings
Seal entry points in rural structures

Maryland Health Resources

Maryland Department of Health

Maryland Poison Center

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View our interactive map and statistics dashboard for comprehensive hantavirus data.