Viral plaque is made in lab for -
Quantitative assay of infectivity of virus
Diagnosis of virus
Qualitative assay of infectivity of virus
Type of virus
Quantitative assays measure the actual number of infectious paicles in the inoculum includes 2 methods-plaque assay and pock assay. REF:ANATHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 8TH EDITION PAGE NO:437
Virology