Peer-reviewed veterinary case report
Systemic toxoplasmosis in a five-month-old beaver, (Castor canadensis).
- Journal:
- Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians
- Year:
- 2004
- Authors:
- Forzán, María J & Frasca, Salvatore
- Affiliation:
- Department of Pathobiology and Veterinary Science · United States
Abstract
A 5-mo-old orphan beaver, Castor canadensis, died of severe systemic toxoplasmosis during rehabilitation. Histologic lesions included lymphohistiocytic encephalitis, myocarditis, and interstitial pneumonia with multinucleated cells. Intracytoplasmic cysts containing tachyzoites and bradyzoites identified as Toxoplasma gondii by immunohisto-chemistry were present in macrophages, type-II pneumocytes, and endothelial cells. Immunohistochemistry using a polyclonal morbillivirus antibody and transmission electron microscopy of lung revealed no evidence of concurrent paramyxoviral infection, as commonly found in carnivores with toxoplasmosis. Toxoplasmosis may affect young beavers in rehabilitation and zoological settings.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/15193086/