Behavioral, physiologic, and habitat influences on the dynamics of Puumala virus infection in bank voles (Clethrionomys glareolus)
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Escutenaire S, Chalon P, De Jaegere F, Karelle-Bui L, Mees G, Brochier B, Rozenfeld F, Pastoret P-P. Behavioral, physiologic, and habitat influences on the dynamics of Puumala virus infection in bank voles (Clethrionomys glareolus). Emerging infectious diseases. 2002;8(9):930-6. [Journal article]
Abstract
Populations of bank voles (Clethrionomys glareolus) were monitored during
a 4-year study in southern Belgium to assess the influence of agonistic
behavior, reproductive status, mobility, and distribution of the
rodents on the dynamics of Puumala virus (abbreviation: PUUV; genus:
Hantavirus) infection. Concordance was high between data from serologic
testing and results of viral RNA detection. Wounds resulting from biting
or scratching were observed mainly in adult rodents. Hantavirus
infection in adults was associated with wounds in the fall, i.e., at the
end of the breeding season, but not in spring. In addition, sexually
active animals were significantly more often wounded and positive for
infection. Hantavirus infection was associated with higher mobility in
juvenile and subadult males. Seroconversions observed 6 months apart
also occurred more frequently in animals that had moved longer distances
from their original capture point. During nonepidemic years, the
distribution of infection was patchy, and positive foci were mainly
located in dense ground vegetation.