Slide Agglutination Method for the Serological Identification of Neisseria gonorrhoeae with Anti-Gonococcal Antibodies Adsorbed to Protein A-Containing Staphylococci

Author:

Danielsson Dan12,Kronvall Göran12

Affiliation:

1. Department of Clinical Bacteriology, Central County Hospital, Örebro, Sweden

2. Department of Medical Microbiology, University of Lund, Lund, Sweden

Abstract

A rapid slide agglutination test has been developed for the identification of Neisseria gonorrhoeae that are primarily detected as oxidase-positive colonies in gonococcal cultures. The technique is based on the specific nonimmune reactivity between the Fc portion of immunoglobulin (Ig)G and staphylococcal protein A. IgG molecules adsorbed to stabilized staphylococci will thereby become oriented with their antigen-reactive sites that are directed outwards. Protein A-containing staphylococci with unabsorbed anti-gonococcal antibodies gave positive co-agglutination reactions with gonococci but also with meningococci, some Moraxella, Haemophilus , and Pseudomonas strains. These crossreactions were eliminated by absorption of the anti-gonococcal antiserum with meningococcal and Moraxella organisms prior to the coating of reagent staphylococci. In the routine culture diagnosis of N. gonorrhoeae the use of specific gonococcal reagent staphylococci gave concordant results with fermentation procedures and immunofluorescent techniques.

Publisher

American Society for Microbiology

Subject

General Pharmacology, Toxicology and Pharmaceutics,General Immunology and Microbiology,General Biochemistry, Genetics and Molecular Biology,General Medicine

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5. New method for the serological grouping of streptococci with specific antibodies absorbed to protein A-containing staphylococci;Christensen P.;Infect. Immunity,1973

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