title: New definitions will help, but cultures are critical for resolving unanswered questions about Clostridium difficile.
authors.forename: Dale N
authors.initials: DN
authors.lastname: Gerding
mesh_terms: D016360:Clostridioides difficile / Q000302:isolation & purification*; D003428:Cross Infection / Q000453:epidemiology / Q000382:microbiology; D004761:Enterocolitis, Pseudomembranous / Q000453:epidemiology* / Q000382:microbiology; D006801:Humans