Antibiotic resistance patterns of Staphylococcus aureus strains isolated from clinical bovine mastitis
Francis, P.G.; Carroll, P.J.
Veterinary Record 118(13): 361-363
1986
ISSN/ISBN: 0042-4900 PMID: 3705385 Document Number: 271817
Sensitivity to antibiotics at two different concentrations and coagulase and beta-lactamase production were assayed in four subcultures of each of 186 primary cultures of S. aureus isolated from mastitic milk. One subculture in eight showed variations in sensitivity to at least one antibiotic. Four primary cultures produced subcultures that varied in coagulase and/or beta-lactamase production. This showed that at least two strains were present in the primary culture. The implications are discussed.