The plaque reduction neutralization test (PRNT) is preferred over other methods mainly because
A) PRNT can differentiate between closely related viruses which have similar antigens.
B) PRNT does not require working directly with a patient blood sample.
C) PRNT can detect low-levels of antibody.
D) working with the live pathogens required for PRNT is risky.
E) it is faster than most other methods.
Answer: A
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