A 5-Year-Old Boy Is Brought to the Emergency Department Due

A 5-year-old boy is brought to the emergency department due to diarrhea and a low-grade fever.  He attends a day care center where other children developed similar symptoms.  The boy has no known medical problems.  He is up to date with age-appropriate vaccinations.  He has not traveled abroad.  Physical examination shows abdominal tenderness on deep palpation but no rigidity.  Stool is sent for culture, and the patient is diagnosed with Shigella sonnei infection.  The outbreak is reported to public health authorities and is traced to consumption of a potato salad handled by a food worker who recently had a mild diarrheal illness.  Which of the following cells are primarily responsible for uptake of the bacteria that initiated the infection in this boy?

A) Endothelial cells
B) Enteroendocrine cells
C) Goblet cells
D) Microfold (M) cells
E) Paneth cells
F) Polymorphonuclear cells

Correct Answer:

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