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Hantavirus Confirmed in Chelan County Resident

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The Chelan-Douglas Health District (CDHD) confirmed a case of Sin Nombre virus (SNV) Hantavirus in a Chelan County resident on February 2026.

CDHD Public Health Officer Dr. James Wallace stated that Hantavirus infections are rare but severe, with one to five cases typically reported annually in Washington residents. The case is unrelated to recent Andes virus cases linked to a cruise ship. Health officials warn that exposure most likely occurred near the resident's home where mice were encountered, emphasizing that Hantavirus spreads through contact with rodent droppings, urine, or saliva, not person-to-person.

CDHD recommends airing out enclosed spaces for 30 minutes before cleaning, wearing protective gear including N-95 respirators, and avoiding stirring up dust in rodent-infested areas. Symptoms of Hantavirus Pulmonary Syndrome include fever, muscle aches, and shortness of breath, with about one-third of cases proving fatal.

📄 Source: Local Government — https://cdhd.wa.gov/2026-05-15-newsroom-2026-02-confirmed-hantavirus-case-in-a-chelan-county-resident
Source receipts12 of 13 claims supported · 92%

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    The Chelan-Douglas Health District (CDHD) confirmed a case of Sin Nombre virus (SNV) Hantavirus in a Chelan County resident“The Chelan-Douglas Health District (CDHD) is notifying the community that a lab-confirmed case of Sin Nombre virus (SNV) Hantavirus has been identified in a Chelan County resident.”
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    The confirmation of the case was on February 2026“Press Release 2026-02 Confirmed Hantavirus Case in Chelan County Resident SPANISH.pdf Chelan-Douglas Health District Confirms a Case of Hantavirus in a Chelan County Resident East Wenatchee, WA.- The Chelan-Douglas Health District (CDHD) is notifying the community that a lab-confirmed case of Sin Nombre virus (SNV) Hantavirus has been identified in a Chelan County resident.”
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    CDHD Public Health Officer Dr. James Wallace stated that Hantavirus infections are rare but severe““Hantavirus infections are rare, but they can be severe. Counties in north central Washington do see occasional cases. There are typically one to five cases of Sin Nombre virus Hantavirus per year in Washington residents, seen throughout the state” said Dr. James Wallace, the Public Health Officer for CDHD.”
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    Hantavirus infections typically have one to five cases reported annually in Washington residents“There are typically one to five cases of Sin Nombre virus Hantavirus per year in Washington residents, seen throughout the state”
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    The case is unrelated to recent Andes virus cases linked to a cruise ship“There is no connection between this case and the recently reported Andes Virus Hantavirus cases associated with the MV Hondius cruise ship.”
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    Health officials warn that exposure most likely occurred near the resident's home where mice were encountered“Exposure most likely occurred in or around the home, where mice were reportedly encountered.”
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    Hantavirus spreads through contact with rodent droppings, urine, or saliva“Hantavirus Pulmonary Syndrome (HPS) is a rare but serious respiratory disease caused by exposure to infected rodents or their droppings, urine, or saliva. People can become infected when virus particles become airborne and are breathed in, particularly while cleaning in cabins, campers, sheds, garages, unused vehicles, storage areas, barns, crawl spaces, or other enclosed areas where rodents have been present. Less commonly, people can also become infected by touching contaminated objects then touching their eyes, nose or mouth, or being bitten or scratched by an infected rodent. Any activity that puts you in contact with deer mouse droppings, urine, saliva, or nesting materials can place you at risk for infection.”
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    Hantavirus does not spread person-to-person“The type of Hantavirus found in rodents in the western United States, Sin Nombre virus, does not spread from person to person.”
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    CDHD recommends airing out enclosed spaces for 30 minutes before cleaning“Air out enclosed spaces for at least 30 minutes before cleaning.”
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    CDHD recommends wearing protective gear including N-95 respirators“· Wear rubber, latex, or vinyl gloves, an N-95 or P-100 respirator, vent-less goggles, and disposable coveralls.”
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    CDHD recommends avoiding stirring up dust in rodent-infested areasNo usable supporting receipt — unverified.
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    Symptoms of Hantavirus Pulmonary Syndrome include fever, muscle aches, and shortness of breath“Symptoms typically develop one to eight weeks after exposure and may initially resemble the flu. Early symptoms may include: · Fever · Fatigue · Muscle aches, especially in the thighs, hips, back, and shoulders · Headache · Chills · Dizziness · Nausea, vomiting, diarrhea, or abdominal pain Later symptoms may include: · Coughing · Shortness of breath · Chest tightness · Difficulty breathing”
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    About one-third of Hantavirus cases prove fatal“It is a serious disease and about one out of three people diagnosed with HPS have died.”

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