the in vitro resistance of 40 strains of staphylococcus aureus isolated from dogs to trimethoprim , sulphamethoxazole and co-trimoxazole ( sxt ) was assessed using the disc diffusion technique on diagnostic sensitivity test agar ( dsta ) , dsta with 5 % lysed horse blood ( dsta + b ) , isosensitest agar ( ista ) and wellcotest sensitivity test agar ( wsta ) .
C0041041
trimethoprim
C0041044
co-trimoxazole