Successful Treatment of Human Entamoeba polecki Infection with Metronidazole

Leonor Chacin-Bonilla Instituto de Investigaciones Clinicas, Universidad del Zulia, Apartado 1151, Maracaibo, Venezuela

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A 24-year-old woman with Entamoeba polecki infection was successfully treated with metronidazole in a dosage of 750 mg orally thrice daily for 5 days. Examination of two direct smears and two formalin-ether concentrates from specimens collected at 2 days, 1 week, 1 month, and 2 months after the conclusion of therapy revealed no amebae. An indirect hemagglutination test for antibodies to E. histolytica gave a low positive titer of 1:128.