A 4-year-old boy has had fever, abdominal cramping, and repeated bloody mucoid stools with tenesmus over the past 3 days

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A 4-year-old boy has had fever, abdominal cramping, and repeated bloody mucoid stools with tenesmus over the past 3 days Several other children at his day-care center have a similar illness. Direct microscopic examination of a methylene blue-stained fecal smear shows numerous neutrophils. Which of the following is the most likely causal organism?


A) Clostridiumdifficile
B) C/ostridium perfringens
C) Enterococcus faecalis
D) Escherichia coli
E) Lsteria monocytogenes
F) Proteus vu/garis
G) Shigella sonnei
H) Vibrio parahaemolyticus