title: A foodborne outbreak of hepatitis A.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D004196:Disease Outbreaks; D005260:Female; D005502:Food; D006506:Hepatitis A / Q000635:transmission*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010414:Pennsylvania