Medical Definition of cholera
: any of several diseases of humans and domestic animals usually marked by severe gastrointestinal symptoms: asa: an acute diarrheal disease caused by an enterotoxin produced by various strains of a comma-shaped gram-negative bacterium of the genus Vibrio (V. cholerae synonym V. comma) when it is present in large numbers in the proximal part of the human small intestine—see asiatic cholerab: fowl cholerac: hog cholera
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