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Puumala Orthohantavirus Infection Does Not Affect the Trapping Success of Its Reservoir Host

Frauke Ecke1, Hussein Khalil1, Magnus Evander2

  • 1Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden.

Vector Borne and Zoonotic Diseases (Larchmont, N.Y.)
|May 17, 2022
PubMed

Insights

Puumala orthohantavirus (PUUV) infection did not affect the trapping success of bank voles. This study confirms snap-trapping is a reliable method for estimating PUUV prevalence in wildlife populations.

Area of Science:

  • Ecology
  • Epidemiology
  • Wildlife Biology

Background:

  • Pathogen infection can alter host behavior, potentially biasing ecological study results.
  • Puumala orthohantavirus (PUUV) is a pathogen affecting bank voles, with suspected behavioral impacts.

Purpose of the Study:

  • To determine if PUUV infection influences the trappability of bank voles (Myodes glareolus).
  • To validate the suitability of snap-trapping for PUUV prevalence studies.

Main Methods:

  • Analysis of snap-trapping data from 1619 PUUV-infected and 6940 non-infected bank voles.
  • Data collected over five vole population cycles (increase, peak, decline phases).
  • Comparison of infection proportions across three consecutive trapping nights.

Main Results:

  • The proportion of PUUV-infected voles did not significantly differ across the three trapping nights.
  • No evidence suggests PUUV infection alters bank vole activity or mobility in a way that affects trapping success.

Conclusions:

  • PUUV infection status does not bias snap-trapping results in bank voles.
  • Snap-trapping remains an appropriate and effective method for studying PUUV prevalence and potentially other orthohantaviruses.
Keywords:
activitybank volebehaviordiseasedmovementsnap trapping

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