TABLE 2.
For TZP, tazobactam was tested at a constant concentration of 4 μg/ml; the piperacillin MICs are shown.
MIC values were interpreted based on CLSI breakpoints (6), except for those of tigecycline, which were interpreted based on FDA prescribing information for Tygacil (7).
Peptostreptococcus spp. included 11 Peptostreptococcus micros and 11 Peptostreptococcus anaerobius isolates.