Vaccinating glycopeptidic antigenic fraction with a very high level of immunogenicity, isolated from cultures of pathogenic germs, processes for isolating said fraction and vaccines containing said fraction

摘要

A glycopeptic vaccinating antigenic fraction with a very high level of immunogenicity, which is isolated from a culture of pathogenic germs comprises an osidic part present in a proportion of about 50%, with a proteinic part, which are linked together by covalent bond; when it is opposed to a suitable immune-serum, the fraction has an immunological image which essentially comprises a `clear` line of precipitation close to the antigen pit, in immunodiffusion in gelose. The fraction is used for the preparation of vaccines and as a diagnostic agent.