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[Immunochemical profile of Staphylococcus aureus exoproducts].

The immunochemical profile of the exoproducts of S. aureus, isolated from a suppurative focus, included two groups of antigens: cell-wall antigens and exoproduct antigens proper. Cross reactions revealed that the highest peak was identical to the preparation of staphylococcal serine proteinase whose high activity had been determined in the biochemical study of the strain.