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Antigenic drift: A mechanism for variation by viruses that involves the accumulation of mutations within the antibody-binding sites so that the resulting viruses cannot be inhibited well by antibodies against previous strains making it easier for them to spread throughout a partially immune population. Antigenic drift occurs in both influenza A and influenza B viruses.
Library > Science > Sci-Tech Dictionary ( ′an·tə¦jen·ik ′drift ) ( immunology ) Minor change of an antigen on the surface of a pathogenic microorganism.
Antigenic drift: A mechanism for variation by viruses that involves the accumulation of mutations within the antibody-binding sites so that the resulting viruses cannot be ...
Antigenic Drift vs. Antigenic Shift Antigenic Drift. Antigenic 'drift' occurs in HA and NA, and is associated with seasonal epidemics. Each year's flu vaccine contains ...
How the Flu Virus Can Change: “Drift†and “Shift†Influenza viruses can change in two different ways. One is called “antigenic drift.â€
antigenic drift (biology), random genetic mutation of an infectious agent resulting in minor changes in proteins called antigens, which stimulate the production of ...