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Fatal toxoplasmosis in a red lory (Eos bornea)
E W Howerth1, G Rich, J P Dubey
1Louisiana Veterinary Medical Diagnostic Laboratory, School of Veterinary Medicine, Louisiana State University, Baton Rouge 70803.
Avian Diseases
|July 1, 1991
Summary
Toxoplasmosis was diagnosed in a red lory chick. Microscopic examination revealed significant organ damage, with Toxoplasma gondii-like organisms confirmed in affected tissues.
Area of Science:
- Veterinary Pathology
- Avian Medicine
- Parasitology
Background:
- Toxoplasmosis, caused by *Toxoplasma gondii*, is a significant parasitic disease affecting various animal species.
- Avian toxoplasmosis is less common but can be fatal, particularly in young birds.
Observation:
- A 3-week-old red lory (Eos bornea) presented with hepatomegaly and pulmonary consolidation.
- Histopathological examination revealed multifocal necrotizing myocarditis, interstitial pneumonia with necrosis and vasculitis, and necrotizing hepatitis.
Findings:
- Toxoplasma gondii-like organisms were identified in the lung, heart, and liver tissues using light and electron microscopy.
- Immunohistochemical staining with anti-T. gondii serum confirmed the presence of the parasite in the affected organs.
Implications:
- This case highlights the susceptibility of psittacine birds, specifically red lories, to toxoplasmosis.
- Accurate diagnosis and understanding of *Toxoplasma gondii* infections in avian species are crucial for effective disease management and prevention.
- Further research into avian toxoplasmosis can improve diagnostic strategies and treatment protocols in veterinary medicine.