Acute Fatal Toxoplasmosis in Squirrels (Sciurus carolensis) with Bradyzoites in Visceral Tissues

J. P. Dubey; E. C. Hodgin; A. N. Hamir

doi:10.1645/GE-749R.1

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J. P. Dubey,^1,2 E. C. Hodgin,³ A. N. Hamir⁴

¹United States Department of Agriculture, Agricultural Research Service, Animal and Natural Resources Institute, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350
²jdubey@anri.barc.usda.gov
³Department of Pathobiological Sciences, School of Veterinary Medicine, Baton Rouge, Louisiana 70894
⁴United States Department of Agriculture, Agricultural Research Service, National Animal Disease Center, 2300 Dayton Road, Ames, Iowa 50010.

Abstract

Acute toxoplasmosis was diagnosed in 3 gray squirrels (Sciurus carolensis) from Louisiana and Pennsylvania. The predominant lesion was multifocal necrosis in several organs, especially of the lymph nodes. Numerous Toxoplasma gondii tachyzoites were seen in lesions, and the diagnosis was confirmed immunohistochemically by reaction with polyclonal T. gondii-specific antibodies. Tissue cysts were seen in several organs, including lung alveoli. The presence of tissue cysts in alveoli of pet squirrels maybe of public health concern if tissue cysts excreted in nasal secretions are swallowed by children.

Citation Download Citation

J. P. Dubey, E. C. Hodgin, and A. N. Hamir "Acute Fatal Toxoplasmosis in Squirrels (Sciurus carolensis) with Bradyzoites in Visceral Tissues," Journal of Parasitology 92(3), 658-659, (1 June 2006). https://doi.org/10.1645/GE-749R.1

Published: 1 June 2006

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