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Cholera Definition Cholera is a dreaded epidemic diarrheal disease caused by Vibrio cholerae serogroup O1 and, since 1992, by the new serogroup O139. The disease is characterized by acute, large-volume watery diarrhea. In its more severe form, a person may…

Key Points Free living amebas infection is a CNS disease, mostly fatal, that commonly may present first with a characteristic cutaneous lesion. A history of exposure to soil or water is common. The cutaneous lesion may precede CNS involvement for…