KnowraAntigenic shiftLinked fromLinked fromThe 15 pages that link to Antigenic shift, each with the reason it gives.All 15Broader topic 2Related 10Compared with 3Avian influenzaRelated: Reassortment can create avian-origin viruses with new combinations of traits.Influenza vaccineRelated: Shift can produce a novel virus that existing vaccine immunity recognizes poorly.InfluenzaRelated: Shift can produce a strain to which humans have little existing immunity.Influenza A virusRelated: Shift can produce a virus to which human populations have little preexisting immunity.Influenza virusRelated: Influenza A can acquire a novel surface-protein combination through reassortment.VirologyRelated: Shift can produce viruses against which human populations have little existing immunity.OrthomyxoviridaeRelated: Coinfection can allow influenza viruses to exchange genome segments and produce new antigen combinations.2009 swine flu pandemicRelated: The pandemic virus carried a novel combination of influenza gene segments.Asian flu pandemicRelated: Reassortment produced the novel H2N2 strain against which most people lacked immunity.Influenza A virus subtype H5N1Related: Reassortment could alter H5N1’s properties if it exchanges gene segments with another influenza virus.