Washington health officials assisting with hantavirus investigations involving two different virus strains in two separate events
Chelan County, Washington, United StatesConfidence 85%1 affectedJun 1, 2026
Washington State health officials are assisting with two separate hantavirus investigations: monitoring King County residents potentially exposed to the Andes strain from a cruise ship and a confirmed Sin Nombre case in Chelan County.
Species mentioned
- humans
Source articles
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- PrimaryWashington health officials assisting with hantavirus investigations involving two different virus strains in two separate events
doh.wa.gov · 2026-06-01
The Washington State Department of Health (DOH) is working with partners on two separate hantavirus investigations as of May 15, 2026. One involves monitoring King County residents potentially exposed to the Andes strain from the MV Hondius cruise ship. The other is a confirmed Sin Nombre virus case in Chelan County, unrelated to the cruise. The risk of hantavirus to the public remains very low.
- ReferenceWashington health officials assisting with hantavirus investigations involving two different virus strains in two separate events
vertexaisearch.cloud.google.com · 2026-06-03
The Washington State Department of Health (DOH) is involved in two separate hantavirus investigations. One focuses on monitoring individuals in King County and Eastern Washington who were potentially exposed to the Andes strain of hantavirus linked to the MV Hondius cruise ship outbreak. The second investigation concerns a confirmed case of the Sin Nombre virus in Chelan County, which is unrelated to the cruise ship outbreak. Health officials suspect the exposure for this local case occurred in or around the patient's home, where mice have been found. The DOH emphasizes that the risk of contr
- ReferenceWashington health officials assisting with hantavirus investigations involving two different virus strains in two separate events
doh.wa.gov · 2026-06-03
On May 15, 2026, the Washington State Department of Health announced two separate hantavirus investigations. One involves monitoring King County residents potentially exposed to the Andes strain from the MV Hondius cruise ship. The other is a confirmed Sin Nombre virus case in Chelan County, unrelated to the cruise, marking the first such case in Washington this year.
Reminder
This report is an aggregated summary of public information for surveillance and awareness purposes only. It is not medical advice. For symptoms, exposure, or clinical decisions, contact a qualified clinician or your local public-health authority.