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- Antigenic_shift abstract "Antigenic shift is the process by which two or more different strains of a virus, or strains of two or more different viruses, combine to form a new subtype having a mixture of the surface antigens of the two or more original strains. The term is often applied specifically to influenza, as that is the best-known example, but the process is also known to occur with other viruses, such as visna virus in sheep. Antigenic shift is a specific case of reassortment or viral shift that confers a phenotypic change.Antigenic shift is contrasted with antigenic drift, which is the natural mutation over time of known strains of influenza (or other things, in a more general sense) which may lead to a loss of immunity, or in vaccine mismatch. Antigenic drift occurs in all types of influenza including influenzavirus A, influenza B and influenza C. Antigenic shift, however, occurs only in influenzavirus A because it infects more than just humans. Affected species include other mammals and birds, giving influenza A the opportunity for a major reorganization of surface antigens. Influenza B and C principally infect humans, minimizing the chance that a reassortment will change its phenotype drastically.Antigenic shift is important for the emergence of new viral pathogens as it is a pathway that viruses may follow to enter a new niche. It could occur with primate viruses and may be a factor for the appearance of new viruses in the human species such as HIV. Due to the structure of its genome, HIV does not undergo reassortment, but it does recombine freely and via superinfection HIV can produce recombinant HIV strains that differ significantly from their ancestors.".
- Antigenic_shift thumbnail AntigenicShift_HiRes_vector.svg?width=300.
- Antigenic_shift wikiPageExternalLink actidfluanimation.html.
- Antigenic_shift wikiPageID "444371".
- Antigenic_shift wikiPageRevisionID "603878860".
- Antigenic_shift hasPhotoCollection Antigenic_shift.
- Antigenic_shift subject Category:Influenza.
- Antigenic_shift subject Category:Virology.
- Antigenic_shift comment "Antigenic shift is the process by which two or more different strains of a virus, or strains of two or more different viruses, combine to form a new subtype having a mixture of the surface antigens of the two or more original strains. The term is often applied specifically to influenza, as that is the best-known example, but the process is also known to occur with other viruses, such as visna virus in sheep.".
- Antigenic_shift label "Antigene shift".
- Antigenic_shift label "Antigenic shift".
- Antigenic_shift label "Antigenshift".
- Antigenic_shift label "Skok antygenowy".
- Antigenic_shift label "Антигенная изменчивость".
- Antigenic_shift label "زيحان مستضدي".
- Antigenic_shift label "抗原不連続変異".
- Antigenic_shift sameAs Antigenshift.
- Antigenic_shift sameAs 抗原不連続変異.
- Antigenic_shift sameAs Antigene_shift.
- Antigenic_shift sameAs Skok_antygenowy.
- Antigenic_shift sameAs Mudança_antigénica.
- Antigenic_shift sameAs m.029760.
- Antigenic_shift sameAs Q575314.
- Antigenic_shift sameAs Q575314.
- Antigenic_shift wasDerivedFrom Antigenic_shift?oldid=603878860.
- Antigenic_shift depiction AntigenicShift_HiRes_vector.svg.
- Antigenic_shift isPrimaryTopicOf Antigenic_shift.
