A bacillus producing a heat stable endotoxin is isolated in the stool.

Question Number 0616

Question:
Several young children living in a crowded institution with a history of poor sanitation develop a watery bright red blood tinged stool . A bacillus producing a heat stable endotoxin is isolated in the stool. The bacillus is non-motile, incapable of fermenting lactose and does not produce H2S. The most likely causative agent is

a) Shigella
b) Campylobacter
c) Giardia
d) Salmonella
e) Campylobacter


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