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SHORT COMMUNICATION |
1 Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, Michigan 48824, USA;
2 Diagnostic Center for Population and Animal Health, Michigan State University, East Lansing, Michigan 48824, USA;
3 Department of Small Animal Clinical Sciences, Michigan State University, East Lansing, Michigan 48824, USA;
4 Department of Microbiology and Molecular Biology, Michigan State University, East Lansing, Michigan 48824, USA
5 Corresponding author (email: fitzgerald{at}dcpah.msu.edu)
ABSTRACT:
A free-ranging mink (Mustela vison), estimated to be 3 mo old, was found on the campus of Michigan State University, East Lansing, Michigan; it exhibited clinical signs of left hind limb lameness, ataxia, head tremors, and bilateral blindness. Histologically, the animal had a mild, nonsuppurative meningoencephalitis and severe chorioretinitis with intralesional bradyzoites and tachyzoites. Protozoal organisms were identified as Toxoplasma gondii based on histology, immunohistochemistry, and polymerase chain reaction. To the authors knowledge, this is the first report of clinical toxoplasmosis in a free-ranging mink.
Key words: Encephalitis, mink, Mustela vison, retinitis, Toxoplasma gondii.
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