title: Shellfish-associated illness.
mesh_terms: D000818:Animals; D049872:Bivalvia; D004196:Disease Outbreaks; D004739:England / Q000453:epidemiology; D005517:Foodborne Diseases / Q000453:epidemiology* / Q000382:microbiology; D005759:Gastroenteritis / Q000453:epidemiology* / Q000382:microbiology; D006801:Humans; D010125:Ostreidae; D012758:Shellfish; D014777:Virus Diseases / Q000453:epidemiology*; D014852:Wales / Q000453:epidemiology