TABLE 1.
a Shaded cells indicate resistance-level MICs for which recommended breakpoints/cutoffs are available.
b Two isolates had metronidazole MICs of ≤0.06 μg/ml.
c Two isolates had rifaximin MICs of >32 μg/ml, and 65 isolates had MICs of ≤0.002 μg/ml.