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  • Title: [Development of immunoenzyme assay for subtype-specific detection of antibodies to influenza viruses A (H1N1) and A (H3N2)].
    Author: Krivitskaia VZ, Sominina AA, Sorokin EV, Voĭtsekhovskaia EM, Mil'kint KK, Sirotkin AK.
    Journal: Vopr Virusol; 2002; 47(3):40-4. PubMed ID: 12173436.
    Abstract:
    Conditions were developed for obtaining surface viral glycoprotein (GP) fraction intended for solid phase sensitization with the aim of constructing enzyme immunoassay test systems (EIATS) for detection of subtypical IgG and IgG to influenza A (H1N1) and A (H3N2) viruses. New variants of test systems were compared with the traditional methods for serological diagnosis of influenza. GP-based EIATS more often diagnosed influenza than EIATS based on purified whole-virion (WV) suspensions, hemagglutination inhibition and neutralization tests. Evaluation of conversions of subtypical IgG showed that the results coincided with the findings of neutralization and hemagglutination inhibition tests in 83-90% (EIATS-GP) and 50% (EIATS-WV). Cross-detection of antibodies to both virus subtypes in EIATS-GP and EIATS-WV was observed in 4 and 31% cases, respectively.
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