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(A) Percentage of all environmental samples positive for Clostridium difficile over time from treatment initiation. (B) Percentage of all environmental samples positive for C difficile after end of treatment (EOT). Note: Positive and total sample numbers at each time point are shown at the top of each panel, together with comparisons of metronidazole/vancomycin (met\van) versus fidaxomicin (FDX), overall, and within Leeds only (L). CI, confidence interval; Pretrt, pretreatment.
