Study: Sin Nombre hantavirus may be more widespread among PNW rodents | kgw.com
Read original atvertexaisearch.cloud.google.com
Idaho, United StatesConfidence 95%Jun 1, 2026
A new study by Washington State University researchers found that nearly 30% of rodents tested in Washington and Idaho showed evidence of Sin Nombre hantavirus infection, suggesting it is more widespread in Pacific Northwest rodents.
Species mentioned
- rodents
- deer mice
- voles
- chipmunks
Source articles
Every claim above is derived from publicly available reporting. Click through to read the original at the publisher.
- PrimaryStudy: Sin Nombre hantavirus may be more widespread among PNW rodents | kgw.com
vertexaisearch.cloud.google.com · 2026-06-01
A study published on May 24, 2026, by Washington State University researchers found that nearly 30% of rodents tested in Washington and Idaho showed evidence of past or active infection with the Sin Nombre hantavirus. This suggests the virus may be more widespread among Pacific Northwest rodents than previously thought. The study focused on deer mice, voles, and chipmunks in farms and natural areas.
- ReferenceStudy 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.
- ReferenceWSU study finds high prevalence of hantavirus in some parts of Pacific Northwest
vertexaisearch.cloud.google.com · 2026-06-01
A Washington State University study, published on May 21, 2026, found a high prevalence of the Sin Nombre virus in rodents in the Palouse region of Washington and Idaho. Nearly 30% of rodents showed evidence of past infection, and about 10% were actively infected, indicating a potentially more widespread presence of the virus than previously recognized in the Pacific Northwest. The study's fieldwork was conducted in Whitman County, Washington, and Latah and Benewah counties in Idaho.
- ReferenceWSU study finds high prevalence of hantavirus in some parts of Pacific Northwest
vertexaisearch.cloud.google.com · 2026-06-02
A Washington State University study published on May 21, 2026, revealed that the Sin Nombre virus, a hantavirus causing deadly respiratory disease, may be more widespread among rodent populations in parts of the Pacific Northwest (Washington and Idaho) than previously thought. Nearly 30% of rodents in the Palouse region showed evidence of past infection, with about 10% actively infected, suggesting potential for unnoticed human infections.
- ReferenceWSU study finds high prevalence of hantavirus in some parts of Pacific Northwest
news.wsu.edu · 2026-05-21
A recent study by Washington State University (WSU) in the Palouse region of Washington and Idaho revealed a high prevalence of Sin Nombre virus, a hantavirus, in rodent populations. Nearly 30% of rodents showed evidence of past infection, and about 10% were actively infected, capable of shedding the virus. This suggests the virus may be more widespread than previously recognized in the Pacific Northwest. The study, published in the CDC's Emerging Infectious Diseases journal, highlights the importance of prevention. Health officials recommend ventilating spaces and using wet-cleaning methods
- ReferenceHantavirus exposure risk may be higher than believed in parts of US, study finds | FOX 5 DC
fox5dc.com · 2026-05-22
FOX 5 DC reported on May 22, 2026, that a study by Washington State University's College of Veterinary Medicine found unexpectedly high levels of Sin Nombre virus, the most common hantavirus in the US, in rodent populations in the Pacific Northwest. The study, published in 'Emerging Infectious Diseases,' indicated that nearly 30% of sampled rodents in the Palouse region (eastern Washington and north-central Idaho) showed prior exposure, suggesting a higher-than-believed hantavirus risk in surrounding agricultural communities. The Sin Nombre virus is spread through aerosolized rodent excretions
- ReferenceHantavirus Outbreak: Prompt Infection Prevention
cleanlink.com · 2026-06-02
A study found elevated hantavirus levels in rodents in the Pacific Northwest, raising the risk of exposure in those communities, and putting cleaning operations in the region on alert. Analyzing rodent samples, Washington State University researchers determined an estimated 30 percent were exposed to the Sin Nombre virus (SNV), with 10 percent infected. SNV is a strain associated with Hantavirus Pulmonary Syndrome (HPS). The article emphasizes the use of personal protective equipment (PPE), ventilation, and proper hand hygiene for cleaning operations in areas with possible rodent activity.
- ReferenceHantavirus exposure risk may be higher than believed in parts of US, study finds | FOX 5 DC
vertexaisearch.cloud.google.com · 2026-06-02
A study by Washington State University researchers found unusually high levels of Sin Nombre virus in rodents in the Pacific Northwest, particularly the Palouse region (eastern Washington and north-central Idaho). Nearly 30% of sampled rodents showed exposure, suggesting a potentially higher hantavirus risk in agricultural communities than previously thought.
- ReferenceStudy finds widespread hantavirus exposure among Pacific Northwest rodent populations
news.wsu.edu · 2026-05-21
A recent study conducted in the Palouse region of Washington and Idaho revealed that nearly 30% of sampled rodents showed evidence of past Sin Nombre virus infection, with 10% actively infected. This suggests the hantavirus may be more prevalent in Pacific Northwest rodent populations than previously understood, increasing the potential for human exposure.
- ReferenceStudy finds widespread hantavirus exposure among Pacific Northwest rodent populations
vertexaisearch.cloud.google.com · 2026-06-02
A recent study conducted in the Palouse region of Washington and Idaho indicates that the Sin Nombre virus, a hantavirus causing deadly respiratory disease in humans, may be more prevalent among rodent populations than previously understood. The study found that nearly 30% of rodents showed signs of past infection, with about 10% actively carrying the virus. Human infections typically occur when people inhale airborne particles from contaminated rodent droppings, urine, or nesting materials, especially during activities that disturb these areas. While the virus is common in rodents, human inf
- ReferenceHantavirus found at high levels in Pacific Northwest rodents, study finds | Fox News
foxnews.com · 2026-05-22
Fox News reported on May 22, 2026, on a study finding unusually high hantavirus levels in rodents in the Pacific Northwest, particularly in the Palouse region (eastern Washington and north-central Idaho). Nearly 30% of sampled rodents showed evidence of prior exposure, and about 10% had active infections of the Sin Nombre virus. This suggests the virus may be more widespread than previously thought in the region. The Sin Nombre virus, the most common hantavirus in the U.S., is typically spread through inhalation of aerosolized rodent urine, droppings, or saliva and is not known for person-to
- ReferenceHantavirus exposure risk may be higher than believed in parts of US, study finds
foxnews.com · 2026-06-03
A study by Washington State University researchers found unexpectedly high levels of Sin Nombre virus, the most common hantavirus in the US, in rodent populations in the Pacific Northwest, particularly the Palouse region (eastern Washington and north-central Idaho). Nearly 30% of sampled rodents showed exposure, suggesting the virus may be more widespread than previously thought, increasing exposure risk for agricultural communities.
- ReferenceHantavirus exposure risk may be higher than believed in parts of US, study finds
fox13news.com · 2026-05-22
A study by Washington State University, published in Emerging Infectious Diseases in May 2026, found unexpectedly high levels of Sin Nombre virus in rodent populations in the Pacific Northwest, specifically the Palouse region (eastern Washington and north-central Idaho). Nearly 30% of sampled rodents showed prior exposure, and 10% had active infections, suggesting the virus may be more widespread than previously thought in agricultural and natural settings.
- ReferenceStudy finds widespread hantavirus exposure among Pacific Northwest rodent populations
news.wsu.edu · 2026-05-21
A recent study conducted in the Palouse region of Washington and Idaho revealed that nearly 30% of rodents showed evidence of past infection with the Sin Nombre virus, a hantavirus capable of causing deadly respiratory disease in humans. Approximately 10% of the rodents were actively infected, indicating they could potentially shed the virus. This finding suggests that the virus may be more prevalent in rodent populations in the Pacific Northwest than previously understood, though human infections remain rare.
- ReferenceStudy finds widespread hantavirus exposure among Pacific Northwest rodent populations
vertexaisearch.cloud.google.com · 2026-06-03
A recent study in the Palouse region of Washington and Idaho revealed widespread exposure to the Sin Nombre virus (a hantavirus) among rodent populations, with nearly 30% showing evidence of past infection and 10% actively infected. While human infections remain rare, researchers suggest some cases might be going unnoticed, highlighting the importance of understanding rodent-related risks.
- ReferenceWSU study finds high prevalence of hantavirus in some parts of Pacific Northwest
wsu.edu · 2026-06-03
A study by Washington State University, published May 21, 2026, found that nearly 30% of rodents in the Palouse region of Washington and Idaho showed evidence of past Sin Nombre virus infection, with 10% actively infected. This suggests the virus, which causes hantavirus pulmonary syndrome, may be more widespread in the Pacific Northwest than previously recognized.
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.