A ________ assay is most useful for determining the viability of a viral preparation?
A. direct (electron microscopic) count
B. hemagglutination
C. plaque
D. PCR
Answer: C
A ________ assay is most useful for determining the viability of a viral preparation?
A. direct (electron microscopic) count
B. hemagglutination
C. plaque
D. PCR
Answer: C