title: A hypothesis accounting for the origin of pandemic cholera: a retrograde analysis.
mesh_terms: D002771:Cholera / Q000266:history / Q000635:transmission*; D002772:Cholera Toxin; D005798:Genes, Bacterial; D049672:History, 19th Century; D049673:History, 20th Century; D049690:History, Ancient; D006801:Humans; D008954:Models, Biological; D014734:Vibrio cholerae / Q000235:genetics / Q000472:pathogenicity
chemical_list: D002772:Cholera Toxin