title: Commentary: cholera conundrums and proto-epidemiologic puzzles. The confusing epidemic world of John Lea and John Snow.
authors.affiliation: National Institute of Allergy and Infectious Diseases, National Institutes of Health, Building 31, Room 7A-03, 31 Center Drive, Bethesda, MD 20892-2520, USA. dm270q@nih.gov
authors.forename: David M
authors.initials: DM
authors.lastname: Morens
mesh_terms: D002771:Cholera / Q000209:etiology* / Q000266:history*; D058872:Epidemics / Q000266:history*; D060587:Groundwater; D006801:Humans