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antigenic

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
antigenic /an·ti·gen·ic/ (an-tĭ-jen´ik) having the properties of an antigen.
antigenic.
See antigen.

antigenic
having the properties of an antigen.

antigenic competition
the immune response to an antigen may be reduced if an unrelated antigen is administered simultaneously or shortly before. These may be between different molecules (intermolecular) or different determinants on the same molecule (intramolecular).
antigenic drift
point mutations in genes resulting in antigenic change. See also orthomyxoviridae.
antigenic mimicry
similarities between sequences found in microbial proteins and host proteins which may result in cross-reacting immune responses and autoimmune disease.
antigenic shift
genetic reassortment between two subtypes of a viral species resulting in a new subtype with completely different antigenicity. See also orthomyxoviridae.


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Explaining how the virus can mutate, Tudor said: "The mutation, or antigenic shift, would occur in a cell when it is infected with two different strains of the H1N1 virus," says Tudor.
World Health Organization Annual human influenza epidemics occur because the influenza viruses change their antigenic structure ('antigenic drift') to produce new strains that can cause infection in persons who have been previously infected or vaccinated with different strains.
Frequent antigenic change, known as antigenic drift, is caused by mutations during reproduction of the virus, and results in new variants of influenza.
 
 
 
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