Coagulase-negative Staphylococcus sp #39, isolated from raw-milk showed reduced sus- ceptibility to vancomycin. The minimun inhibitory concentration (MIC) for strain #39 was at 8μg of vancomycin per ml. Transmitting electron microscopy displayed that...
Coagulase-negative Staphylococcus sp #39, isolated from raw-milk showed reduced sus- ceptibility to vancomycin. The minimun inhibitory concentration (MIC) for strain #39 was at 8μg of vancomycin per ml. Transmitting electron microscopy displayed that this strain had a 2.5∼3.5 times thicker cell wall than a vancomucin sensitive strain of Staphylococcus sp. The strain #39 also had an increased cell volume. These data indicate that the reduced susceptibility may be due to the thickness of the cell wall of the test strain.