Clostridium difficile.
D016360:Clostridioides difficile; D004761:Enterocolitis, Pseudomembranous / Q000175:diagnosis / Q000188:drug therapy / Q000453:epidemiology* / Q000517:prevention & control; D006801:Humans; D011183:Postoperative Complications / Q000382:microbiology*; D014180:Transplantation / Q000009:adverse effects*