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  • Title: Antigenic analysis of prototype influenza A (H3N2) strains by the antiserum absorption method.
    Author: Takátsy G, Barb K.
    Journal: J Hyg (Lond); 1973 Sep; 71(3):501-8. PubMed ID: 4518349.
    Abstract:
    Prototype strains of the influenza A (H3N2) virus can be arranged on a gradient showing the degree of the antigenic drift which the haemagglutinins of the strains have undergone. The demonstration of fine antigenic differences is based on an antiserum absorption test which allows a detailed antigenic analysis of strains. The gradient provides information on variation in strains occurring in different geographical areas and its use may be helpful in differentiating between introduced strains and locally developing variants.
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