Apparent isolation of Toxoplasma gondii from human faeces.

Abstract

After repeated abortions a woman had a healthy child followed by 2 children who had choroido-retinitis since birth. These 4 subjects showed Toxoplasma antibodies of moderate titre. Ascaris lumbricoides ova found in the stools of the mother and the healthy child were collected, and after 7 days' incubation, a suspension of non-larvated ova collected from the mother was inoculated orally and subcutaneously into mice. 3 of the 4 mice inoculated orally showed Toxoplasma cysts in their brains. No success attended attempts for further isolation from specimens containing mature ova of the same batch or from other stool specimens collected over 2 years from the mother or healthy child or from 2 female worms and their ova obtained from the mother.