What is antigenic drift?
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Antigenic drift is a mechanism for variation in viruses that involves the accumulation of mutations within the genes that code for antibody - binding sites ..... similarly a vaccine against a virus works by teaching the immune system to recognize the antigens exhibited by this virus ......
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Antigenic drift is a kind of genetic variation in viruses, arising by the accumulation of mutations in the virus genes that code for virus-surface proteins that host antibodies recognize.
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