Viral neutralization testing is based on the fact that

A) antibodies can be produced against the toxin of a pathogen.
B) antibodies have different molecular weights.
C) viruses introduced into appropriate cell cultures have a cytopathic effect.
D) the gene for a pathogen's antigen can be isolated and introduced into a host cell by way of a plasmid.
E) antibodies to certain microbes can be given a fluorescent label.


C

Biology & Microbiology

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