EntityQ575258· pop 21· linked from 120 articlesantigenic driftSign in to savemechanism for variation in virusesConnectionsvirusEntityevolutionEntityInternational Standard Book NumberEntityimmunityEntityWayback MachineEntitynatural selectionEntityvaccinationEntitydigital object identifierEntityinfectionEntityInternational Standard Serial NumberEntitymutationEntityantibodyEntityQ180686EntityimmunityEntityantigenEntitystandard genetic codeEntitygenetic driftEntitybibcodeEntityQ229883EntityRNA polymeraseEntityCategoriesInfluenzaVirology