Consider the links in the chain of infection. Which of the links is broken when the susceptible members of the population are immunized?
A. Dose
B. Susceptibility
C. Virulence
D. Exposure
E. The agent
Answer: B
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Which of the following is an animal with rigid bones, jaws, and a swim bladder?
a. Hagfish b. Sharks c. Lobe-finned fish d. Lampreys e. Salmon
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Answer the following statement true (T) or false (F)
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