TABLE 3.

Correlation between PCR-based genotyping and susceptibility to AMP

PCR-based genotypeNo. of isolatesNo. of isolates with MIC to AMP (μg/ml) of:MIC (μg/ml)Susceptibility (%)a
≤0.120.250.512481632≥64MIC50MIC90RangeSIR
gBLNAS873354630.50.50.12-110000
Group I/II gBLNAR98523211823620.520.12-868.423.58.1
Group III gBLNAR7471418241014161-329.518.971.6
Group I/II gBLPACR1112812812800100
Group III gBLPACR22>128>128>12800100
gBLPAR2264>12864->12800100
Total264858672837242610150.580.12->128
  • a S, susceptible; I, intermediate; R, resistant.