Multiple Choice
E. coli O157:H7 has a very low infectious dose because
A) it is encapsulated.
B) disease results from a synergistic action with Shigella.
C) it is resistant to usually lethal gastric acid.
D) the intestine has many receptors for the toxin.
E) it secretes a superantigen.
Correct Answer:

Verified
Correct Answer:
Verified
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