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    Microbiology An Evolving Science
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    Exam 25: Microbial Pathogenesis
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    The Term Used to Designate How Many Bacteria or Viruses
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The Term Used to Designate How Many Bacteria or Viruses

Question 20

Question 20

Multiple Choice

The term used to designate how many bacteria or viruses are required to kill 50% of an experimental group of hosts is


A) ID50.
B) LD50.
C) pathogenicity.
D) infectivity.
E) virulence.

Correct Answer:

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