Extract

A 41-year-old woman from Cameroon presented to an infertility clinic after being unable to conceive for 1 year. The patient had immigrated to the United States 4 years before presentation and had visited Cameroon regularly. She felt well, and the findings of her physical examination were unremarkable. Her laboratory data showed normal hormone profiles, a hemoglobin level of 11.5 g/dL, and an absolute eosinophil count of 350 cells/μL (eosinophil percentage, 5%). Transvaginal ultrasonography demonstrated a leiomyoma (area, 6×5 cm), but findings were otherwise unremarkable

The patient decided to pursue in vitro fertilization and underwent oocyte retrieval via transvaginal follicle aspiration. On routine microscopic inspection of this follicular fluid, multiple motile “worms” were noted (figure 2). Subsequent examination of a fresh peripheral blood sample under light microscopy confirmed these organisms to be motile [(figure 3; see also video 1, available in the electronic edition of Clinical Infectious Diseases)[(figure 1 [online only]).

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