Table 2.

MICs for the strains tested

StrainMIC (μg/ml)a
AMXAMX + CATICTIC + CACFFOXCTXCAZMOXMOX + CAMOX + SULMOX + TZCTTATMIMP
K. pneumoniae
 NEM865>1,024>1,024>1,02451251264128256162228320.5
 NEM533824244<0.060.250.250.250.250.250.1250.06<0.5
 NEM835 (NEM835/pNEC865)>1,02416>1,024161284326440.250.250.25216<0.5
E. coli
 K802N110.50.544<0.060.250.250.250.250.250.250.25<0.5
 NEM837 (K802N/pNEC865)>1,02416>1,024161284326440.250.250.2528<0.5
 TG1/pBGS18Ωbla TEM-52 >1,02432>1,0243225643212840.250.250.2528<0.5
 TG1/pBGS18Ωbla TEM-3 >1,02416>1,0241664416320.250.250.250.250.258<0.5
 TG1/pBGS18Ωbla TEM-1 >1,0248>1,0248324<0.060.250.250.250.250.250.250.125<0.5
 TG1/pBGS18Ωbla TEM-52H >1,024128>1,02412825640.2580.50.50.50.50.50.5<0.5
 TG1/pBGS18221144<0.060.250.250.250.250.250.250.25<0.5
  • a TIC, ticarcillin; CF, cephalothin; IMP, imipenem. The other abbreviations are defined in the text. CA, SUL, and TZ were each used at a final concentration of 4 μg/ml.