title: Clostridia as intestinal pathogens.
mesh_terms: D000328:Adult; D003013:Clostridium / Q000472:pathogenicity*; D003015:Clostridium Infections / Q000382:microbiology; D003016:Clostridium perfringens / Q000472:pathogenicity; D004761:Enterocolitis, Pseudomembranous / Q000209:etiology / Q000382:microbiology*; D006801:Humans; D007223:Infant; D007422:Intestines / Q000382:microbiology