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Pathology of experimentally‐induced, acute toxoplasmosis in macropods
Author(s) -
REDDACLIFF GL,
HARTLEY WJ,
DUBEY JP,
COOPER DW
Publication year - 1993
Publication title -
australian veterinary journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.382
H-Index - 59
eISSN - 1751-0813
pISSN - 0005-0423
DOI - 10.1111/j.1751-0813.1993.tb00784.x
Subject(s) - toxoplasmosis , pathology , toxoplasma gondii , inflammation , medicine , spleen , myocarditis , necrosis , macropus , skeletal muscle , adrenal cortex , biology , immunology , anatomy , antibody , paleontology , marsupial
SUMMARY Thirteen Tammar wallabies ( Macropus eugenii ) were dosed orally with 500, 1000 or 10 000 oocysts of Toxoplasma gondii , as part of a vaccination trial. Eleven animals died of acute toxoplasmosis 9 to 15 days after challenge. The lesions were similar in all animals, consisting of foci of necrosis and inflammation in the intestines, lymphoid tissue, adrenal cortex, heart, skeletal muscle and brain, and severe generalised pulmonary congestion and oedema. Free and intracellular tachyzoites of Toxoplasma were associated with the lesions. The remaining 2 animals had shown no signs of disease when euthanased four months after challenge. Small, focal, non‐suppurative inflammatory lesions were seen in brain, heart and skeletal muscle of these animals and chronic Toxoplasma infection was confirmed by mouse inoculation.