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.
CONTINUE SCROLLING OR CLICK HERE

QUESTION
What causes tooth decay? See AnswerHealth Solutions From Our Sponsors
Reviewed on 3/29/2021