1887

Abstract

Summary

Passive haemagglutination (PHA) and protein A-antibody-mediated haemagglutination (SAPA-AMHA) were used to analyse the cross-reactions of rabbit antisera against four stains of There was cross-reactivity between all the strains tested but strain-specific reactions were obtained with three strains. Two to 32-fold higher antibody titres were obtained with SAPA-AMHA than with PHA. The antigen concentration required in inhibition assays was up to 32-fold higher for PHA than for SAPA-AMHA. The latter is a simple and superior alternative to PHA for such studies.

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1986-06-01
2024-05-02
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