Which is not a cytopathic effect of virus ?
Ans. is b i.e., Budding Methods of detection of viral growth in cell cultures 1. Cytopathic effect Many viruses causes morphological changes in cultured cells known as cytopathic effect. Examples are: Enterovirus Crenation of cells and degeneration of the entire cell sheet Measles virus Syncytium formation Herpes virus Focal degenration Adenovirus Large granular clump resembling bunches of grapes SV40 Cytoplasmic vacuolation 2. Metabolic Inhibition 3. Hemadsorption - Mainly for influenza and parainfluenza viruses. 4. Interference - Growth of the first virus inhibit the growth of second virus. 5. Transformation - for oncogenic viruses 6. Immunofluoresence - for detection of viral antigen - Give positive results earlier than other methods.
Syncytium formation
Budding
Ballooning and floating
Focal degeneration