)

A. Viable attenuated microbes can still multiply, inducing robust immune responses.
B. They enhance herd immunity because they produce long lasting protection due to the memory response.
C. They require special storage facilities.
D. They can revert to a more virulent form due to mutation.
E. They can be spread to non-immune individuals.


A. Viable attenuated microbes can still multiply, inducing robust immune responses.
B. They enhance herd immunity because they produce long lasting protection due to the memory response.

Biology & Microbiology

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