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.
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1 October 2006
Toxoplasmosis in a Free-ranging Mink
Yava L. Jones,
Scott D. Fitzgerald,
James G. Sikarske,
Alice Murphy,
Nicole Grosjean,
Matti Kiupel
Journal of Wildlife Diseases
Vol. 42 • No. 4
October 2006
Vol. 42 • No. 4
October 2006
encephalitis
mink
Mustela vison
retinitis
Toxoplasma gondii