Antigenic relationships among influenza virua A neuraminidase (N2) antigens by immunodiffusion and postinfection neutralization tests.
Identifieur interne : 000203 ( 1957/Analysis ); précédent : 000202; suivant : 000204Antigenic relationships among influenza virua A neuraminidase (N2) antigens by immunodiffusion and postinfection neutralization tests.
Auteurs : W R Dowdle ; W G Laver ; J C Galphin ; J C DownieSource :
- Journal of Clinical Microbiology [ 0095-1137 ] ; 1976.
Abstract
The antigenic relationships among the neuraminidases of influenza A strains from 1957 to 1973 were examined by postinfection application of neuraminidase antisera. This procedure causes inhibition of virus spread and apparent neutralization. Neuraminidase (apparent) neutralization and neuraminidase inhibition tests with chicken antisera gave similar results. Neuraminidase inhibition tests were more discriminating than neuraminidase neutralization tests when rabbit and goat antisera were used. Antibody absorption studies revealed that the neuraminidase, like the hemagglutinin, may possess two kinds of antigenic determinants, which can give rise to "common," or "cross-reacting," and "specific" antibodies. "Specific" antibody appears to be more effective in the inhibition of enzyme activity than in the inhibition of virus spread.
Url:
PubMed: 57967
PubMed Central: 274276
Affiliations:
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PMC:274276Le document en format XML
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