Bank voles in Poland are reservoirs of zoonotic viruses. To determine seroprevalence of hantavirus, arenavirus, and cowpox virus and factors affecting seroprevalence, we screened for antibodies against these viruses over 9 years. Cowpox virus was most prevalent and affected by extrinsic and intrinsic factors. Long-term and multisite surveillance is crucial.
Keywords: Myodes glareolus; Poland; arenavirus; bank voles; cowpox virus; extrinsic factors; hantavirus; intrinsic factors; long-term approach; seromonitoring; seroprevalence; viruses; zoonoses.