Multiple Choice
The infectious dose
A) is the same for all microorganisms.
B) may be 10-100 cells for Salmonella.
C) is expressed as ID50.
D) is defined as the number of microbes necessary to ensure infection.
E) is expressed as ID50 AND is defined as the number of microbes necessary to ensure infection.
Correct Answer:

Verified
Correct Answer:
Verified
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