Study finds widespread hantavirus exposure among Pacific Northwest rodent populations
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Benewah County, Idaho, United StatesConfidence 90%1 week ago
A study in the Palouse region of Washington and Idaho found significant hantavirus exposure and active infection rates in rodent populations, indicating the virus is more widespread in the Pacific Northwest than previously thought.
Species mentioned
- rodent
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- PrimaryStudy finds widespread hantavirus exposure among Pacific Northwest rodent populations
news-medical.net · 2026-05-22
A recent study in the Palouse region of Washington and Idaho found that nearly 30% of rodents showed evidence of past Sin Nombre virus infection, with about 10% actively infected. This suggests the virus, which causes hantavirus pulmonary syndrome, may be more widespread in Pacific Northwest rodent populations than previously recognized. Fieldwork for the study was conducted in Whitman County, Washington, and Latah and Benewah counties in Idaho. Human infections remain rare, but the study highlights the importance of awareness.
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.