Historic and contemporary museum specimens implicate Northern Red-backed Vole (Clethrionomys rutilus) as borealpox host as early as 1990s
This study identifies the Northern Red-backed Vole (*Clethrionomys rutilus*) as a likely reservoir for Borealpox virus by detecting the pathogen in both contemporary wild populations and historical museum specimens dating back to the late 1990s, suggesting the virus has been circulating in Alaskan small mammals for at least 25 years prior to the first reported human cases.