Microbiology Virology b11491ba

False about antigenic drift -

Occur under pressure for immunity

Responsible for epidemics of influenza

Occurs only in influenza-A

Occur every 10-12 years

High-Yield Explanation

Antigenic drift the gradual sequential change in antigenic structure occurring regularly at frequent intervals. Antigenic drift is due to mutation and selection. It accounts for the periodic epidemics of influenza. REF:ANANTHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 9TH EDITION PAGE NO-499

← Previous Question Next Question →