Fatal toxoplasmosis in a vinaceous amazon parrot (Amazona vinacea)

Francisco Carlos Ferreira; Rogerio Venâncio Donatti; Marcus Vinícius Romero Marques; Roselene Ecco; Ingred Sales Preis; H L Shivaprasad; Daniel Ambrózio Da Rocha Vilela; Nelson Rodrigo Da Silva Martins

doi:10.1637/10063-011912-Case.1

Fatal toxoplasmosis in a vinaceous amazon parrot (Amazona vinacea)

Francisco Carlos Ferreira, Rogerio Venâncio Donatti, Marcus Vinícius Romero Marques, Roselene Ecco, Ingred Sales Preis, H L Shivaprasad, Daniel Ambrózio Da Rocha Vilela, Nelson Rodrigo Da Silva Martins

California Animal Health & Food Safety Lab

Research output: Contribution to journal › Article

8 Scopus citations

Abstract

Toxoplasmosis was diagnosed in a vinaceous Amazon parrot based on histopathology and immunohistochemistry. The bird was prostrate on the bottom of the cage and died. Necropsy revealed edema and congestion of the lungs, cloudy air sacs, and mild hepatomegaly. Histopathology revealed severe pulmonary congestion and edema and interstitial mononuclear cell inflammation associated with many cysts containing bradyzoites of Toxoplasma gondii scattered throughout. The heart had mild multifocal lymphocytic myocarditis and free tachyzoites in the muscle fibers, and the kidneys had mild interstitial nephritis and a few cysts containing bradyzoites of T. gondii. Immunohistochemistry was negative for Sarcocystis falcatula and Neospora caninum and confirmed the protozoa as T. gondii. This is the first description of T. gondii in an endangered species of a Brazilian psittacine.

Original language	English (US)
Pages (from-to)	774-777
Number of pages	4
Journal	Avian Diseases
Volume	56
Issue number	4
DOIs	https://doi.org/10.1637/10063-011912-Case.1
State	Published - Dec 2012

Keywords

Amazona vinacea
Brazil
Psittacines
Toxoplasma gondii
Toxoplasmosis
Vinaceous parrot

ASJC Scopus subject areas

Animal Science and Zoology
Food Animals
Immunology and Microbiology(all)

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Ferreira, F. C., Donatti, R. V., Marques, M. V. R., Ecco, R., Preis, I. S., Shivaprasad, H. L., Da Rocha Vilela, D. A., & Da Silva Martins, N. R. (2012). Fatal toxoplasmosis in a vinaceous amazon parrot (Amazona vinacea). Avian Diseases, 56(4), 774-777. https://doi.org/10.1637/10063-011912-Case.1

Fatal toxoplasmosis in a vinaceous amazon parrot (Amazona vinacea). / Ferreira, Francisco Carlos; Donatti, Rogerio Venâncio; Marques, Marcus Vinícius Romero; Ecco, Roselene; Preis, Ingred Sales; Shivaprasad, H L; Da Rocha Vilela, Daniel Ambrózio; Da Silva Martins, Nelson Rodrigo.

In: Avian Diseases, Vol. 56, No. 4, 12.2012, p. 774-777.

Research output: Contribution to journal › Article

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abstract = "Toxoplasmosis was diagnosed in a vinaceous Amazon parrot based on histopathology and immunohistochemistry. The bird was prostrate on the bottom of the cage and died. Necropsy revealed edema and congestion of the lungs, cloudy air sacs, and mild hepatomegaly. Histopathology revealed severe pulmonary congestion and edema and interstitial mononuclear cell inflammation associated with many cysts containing bradyzoites of Toxoplasma gondii scattered throughout. The heart had mild multifocal lymphocytic myocarditis and free tachyzoites in the muscle fibers, and the kidneys had mild interstitial nephritis and a few cysts containing bradyzoites of T. gondii. Immunohistochemistry was negative for Sarcocystis falcatula and Neospora caninum and confirmed the protozoa as T. gondii. This is the first description of T. gondii in an endangered species of a Brazilian psittacine.",

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