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132515 Microbiology

An 8-year-old child is brought in by her mother with complaints of crampy abdominal pain, nausea, and mild diarrhea for approximately 2 weeks. The day before this visit, she vomited up a cylindrical white worm 30 cm in length, which the mother preserved in a jar. Which of the following is the most likely means by which this organism was acquired?

AAutoinfection
BIngestion of cysts in contaminated water
CIngestion of eggs from an infected pet
DIngestion of eggs from human feces
Microbiology
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