Serological survey of rodent-borne viruses in Finnish field voles.
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| Abstract |
In northern Europe, rodent populations display cyclic density fluctuations that can be correlated with the human incidence of zoonotic diseases they spread. During density peaks, field voles (Microtus agrestis) become one of the most abundant rodent species in northern Europe, yet little is known of the viruses they host. We screened 709 field voles, trapped from 14 sites over 3 years, for antibodies against four rodent-borne, potentially zoonotic viruses or virus groups-hantaviruses, lymphocytic choriomeningitis virus (LCMV), Ljungan virus (LV), and orthopoxviruses (OPV). Antibodies against all four viruses were detected. However, seroprevalence of hantaviruses, LV, and LCMV was low. OPV antibodies (most likely cowpox) were more common but restricted geographically to southeastern Finland. Within these sites, antibody prevalence showed delayed density dependence in spring and direct density dependence in fall. Higher seroprevalence was found in spring than fall. These results substantially increase knowledge of the presence and distribution of viruses of field voles in Finland, as well as CPXV infection dynamics.
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| Authors | Kristian M Forbes, Liina Voutilainen, Anne Jääskeläinen, Tarja Sironen, Paula M Kinnunen, Peter Stuart, Olli Vapalahti, Heikki Henttonen, Otso Huitu |
| Journal | Vector borne and zoonotic diseases (Larchmont, N.Y.) (Vector Borne Zoonotic Dis) Vol. 14 Issue 4 Pg. 278-83 (Apr 2014) ISSN: 1557-7759 [Electronic] United States |
| PMID | 24689532 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't) |
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