TABLE 5

Transcription of acrB and efflux pump activity in H. influenzae NUBL1772 compared to that in strain Rd

Strain or isolateRelative mRNA level of acrBP valueInitial velocity (fluorescence intensity/min) of ethidium bromide accumulationP value
Rd1.11 ± 0.650.0381.63 ± 0.320.026
NUBL17724.80 ± 1.980.89 ± 0.18