Gastroenteritis associated with shellfish.
D000818:Animals; D017250:Caliciviridae Infections / Q000453:epidemiology / Q000635:transmission*; D004196:Disease Outbreaks; D004739:England / Q000453:epidemiology; D005516:Food Microbiology; D005517:Foodborne Diseases / Q000453:epidemiology*; D005759:Gastroenteritis / Q000453:epidemiology*; D006801:Humans; D009663:Norwalk virus; D010125:Ostreidae / Q000382:microbiology; D057096:Shellfish Poisoning; D014852:Wales / Q000453:epidemiology