title: Hepatitis A outbreak: report on results from food trace-back investigation.
mesh_terms: D004196:Disease Outbreaks; D005506:Food Contamination / Q000032:analysis; D005517:Foodborne Diseases / Q000453:epidemiology / Q000382:microbiology; D006506:Hepatitis A / Q000453:epidemiology*; D006801:Humans; D018571:Sentinel Surveillance