Human and animal sources of gastrointestinal infection; (a) the spread of some bowel infections from human sources.
D003141:Communicable Diseases; D005767:Gastrointestinal Diseases; D006801:Humans; D007410:Intestinal Diseases; D059413:Intraabdominal Infections; D010284:Paratyphoid Fever / Q000453:epidemiology*; D014435:Typhoid Fever / Q000453:epidemiology*
GASTROINTESTINAL DISEASES; PARATYPHOID FEVERS/epidemiology; TYPHOID FEVER/epidemiology