however , all 28 tmp-smx resistant isolates examined were resistant to ampicillin and streptomycin and had minimum inhibitory concentrations to sulfamethoxazole of greater than or equal to 4,096 micrograms/ml and to trimethoprim of greater than or equal to 1,024 micrograms/ml .
C0041044
tmp-smx
C0038689
sulfamethoxazole