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Journal of Wildlife Diseases, 41(1), 2005, pp. 224-230
© Wildlife Disease Association  2005
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SHORT COMMUNICATION

Sarcocystis neurona-associated Meningoencephalitis and Description of Intramuscular Sarcocysts in a Fisher (Martes pennanti)

Richard W. Gerhold1,4, Elizabeth W. Howerth2 and David S. Lindsay3

1 Southeastern Cooperative Wildlife Disease Study, College of Veterinary Medicine, The University of Georgia, Athens, Georgia 30602, USA
2 Department of Pathology, College of Veterinary Medicine, The University of Georgia, Athens, Georgia 30602, USA
3 Center for Molecular Medicine and Infectious Diseases, Department of Biomedical Sciences and Pathobiology, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Tech, 1410 Prices Fork Road, Blacksburg, Virginia 24061, USA
4 Corresponding author (email: rgerhold{at}vet.uga.edu).

ABSTRACT:   A free-ranging juvenile fisher (Martes pennanti) with ataxia, lethargy, stupor, and intermittent, whole-body tremors was examined postmortem. Microscopically, the fisher had protozoal meningoencephalitis caused by Sarcocystis neurona, which was confirmed by immunohistochemistry, polymerase chain reaction (PCR) and restriction fragment length polymorphism testing, and genetic sequencing. Sarcocysts found in the skeletal muscle of the fisher were negative for S. neurona by PCR, but were morphologically similar to previous light and electron microscopy descriptions of S. neurona. This is the first report of clinical neural S. neurona infection in a fisher.
  Key words:  Fisher, Martes pennanti, meningoencephalitis, mustelid, Sarcocystis neurona.






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