Spontaneous Acute Toxoplasmosis in a Marmoset Monkey

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  • Departments of Pathology and Obstetrics, Harvard Medical School and the Boston Lying-in Hospital, Boston, Massachusetts


A spontaneous infection with what appears to be Toxoplasma gondii of an immature Oedipomidas oedipus marmoset is reported. The animal arrived five days prior to death from Colombia and had an overwhelming infection with death due to interstitial pneumonia and pulmonary edema. Organisms identified as Toxoplasma on the basis of morphology and transmissibility to mice were recovered from the carcass and were found in all major organs.