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  • Title: The immunological properties of Brucella ribosomal preparations.
    Author: Corbel MJ.
    Journal: Dev Biol Stand; 1976; 31():115-22. PubMed ID: 816681.
    Abstract:
    Ribosomes were isolated from Brucella abortus strains 19 and 45/20 by disruption of the cells followed by differential ultracentrifugation. The ribosome preparations contained 2-3 components reacting in immunodiffusion tests but were free of detectable lipopolysaccharide-protein agglutinogen. They crossreacted with antisera to Br. abortus, Br. melitensis, Br. suis and Br. ovis and elicited intradermal delayed hypersensitivity reactions in animals infected with Br. abortus, Br. melitensis or Br. suis. The ribosomes were antigenic in rabbits, guinea pigs and mice. Those from Br. abortus S19 induced agglutinins reaction with smooth brucella strains whereas those from Br. abortus 45/20 induced agglutinins reacting with rough brucella strains. Cattle vaccinated with S19 or 45/20 vaccines or infected with Br. abortus developed pricipitins to ribosomal components at an early stage in the immune response.
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