Surveillance of infectious intestinal disease.
D003430:Cross-Sectional Studies; D004196:Disease Outbreaks; D004739:England / Q000453:epidemiology; D005517:Foodborne Diseases / Q000453:epidemiology* / Q000209:etiology; D005759:Gastroenteritis / Q000453:epidemiology* / Q000209:etiology; D006801:Humans; D015994:Incidence; D011159:Population Surveillance; D014852:Wales / Q000453:epidemiology