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8043 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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8044 Microbiology

A patient undergoing chemotherapy develops a cough. Acid-fast stain of his sputum shows rods and slightly longer forms, with some branching; they vary in their acid-fast reaction from one area of the slide to the next. The acid-fast stain was performed by an experienced medical technologist and, when redone, showed the same variation. The growth was done aerobically. What is the most likely agent?

AActinomyces
BChlamydophila
CMycobacterium an-intracellular (MAIor MAC)
DNocardia
Microbiology
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