[Detection of staphylococcal protein A in broth cultures using counter electrophoresis]

The diagnostic value of counter-current electrophoresis for the detection of Staphylococcus aureus protein A in the material from patients, carriers, and environmental objects is demonstrated: this method identifies 99.8% of S. aureus cultures. Microorganisms of other species and physiologic groups, not incorporating protein A, are undetectable by counter-current electrophoresis.