Abstract:
One hundred and seventy one strains of Staphylococcus aureus were isolated from
specimens processed in the laboratory of the department of Microbiology, faculty of
medicine Colombo between August 1991 to September 1992. These strains were
characterized by antibiotic sensitively tests, namely-disc diffusion test heterogeneous and
homogeneous resistance to methicillin; and minimum inhibitory concentration for
methicillin; and other characterization tests, namely- coagulase production with human and
rabbit plasma; urea hydrolysis at 24 and 48 hours; protein A levels; and pigment production
