
Rodents in Pacific Northwest harbor more hantavirus than previously thought
WSU researchers found that nearly 30% of Palouse-region rodents (deer mice, voles, and chipmunks) carried Sin Nombre hantavirus at some point, with about 10% actively infected, suggesting higher rodent-to-human exposure risk in the Pacific Northwest; SNV is the US hantavirus most linked to disease, transmitted mainly via contaminated rodent excretions, not person-to-person. The work, based on 2023 fieldwork in WA and Idaho and published in Emerging Infectious Diseases, notes occasional cross-species transmission among rodents and that human infections may be underrecognized.












