Changes in opportunistic enteropathogens. Bacterial counts (log(cells/ml)) of (A) Clostridium perfringens, (B) Clostridioides difficile, and (C) EPEC upon treatments across all four donor in vitro microbiota (pairwise Wilcoxon rank sum test with multiple comparison correction: ^*P < 0.05, ^**P < 0.01, ^***P < 0.005,^****P < 0.001).