60. Which of the following is NOT one of Koch’s
postulates?
A) The same pathogen must be present in every case of the
disease
B) The pathogen must be isolated and grown in pure culture from the
diseased host
C) The pathogen from the pure culture must cause the disease when
inoculated into a healthy,
susceptible lab animal
D) The disease must be transmitted from a diseased animal to a
healthy, susceptible by some
form of contact
E) The pathogen must be isolated in pure culture from an
experimentally infected lab animal
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