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  • Title: Analysis of specificity of poliovirus inhibitors with inhibitor-resistant mutants of a strain of type 1 poliovirus.
    Author: Hashimoto N.
    Journal: J Immunol; 1975 Aug; 115(2):569-74. PubMed ID: 168261.
    Abstract:
    Attempts were made to analyze the specificity of inhibitory activities of normal bovine and equine sera to the Mahoney strain of type 1 poliovirus. A total of five inhibitory factors were postulated to explain the complicated results. Two of the three bovine inhibitors were identical in specificity to certain equine inhibitors despite differences in their mode of virus inactivation and their molecular size. In addition to this, inhibitors that could inactivate certain resistant mutants, but not the parent virus, were newly detected in a number of normal bovine and equine sera. Antigenic variation of the resistant mutants against equine sera containing an inhibitory factor h-11 was determined by means of the kinetic neutralization test by using both anti-Mahoney and anti-M-H11 sera. These results offer evidence that some inhibitors, at least in part, are indistinguishable from specific antibody.
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