Antibiogram and production of beta-lactamase by canine isolates of Staphylococcus aureus.

Clinical isolates of canine S. aureus strains (213) have been investigated for ability to produce beta-lactamase and sensitivity to 12 antibiotics. Fifty (23.5%) strains produced beta-lactamase. Using only the paper disc antibiotic diffusion method 17 of these would incorrectly have been classified was sensitive to beta-lactamase antibiotics. all strains were sensitive to methicillin, gentamicin and fusidic acid.