An illness characterized by diarrhea and/or vomiting; severity
is variable.
Laboratory criteria for diagnosis
Isolation of toxigenic (i.e., cholera toxin-producing) Vibrio
cholerae O1 or O139 from stool or vomitus, or
Serologic evidence of recent infection
Case classification
Confirmed: a clinically compatible
illness that is laboratory confirmed
Comment
Illnesses caused by strains of V. cholerae other than toxigenic
V. cholerae O1 or O139 should not be reported as cases of cholera. The
etiologic agent of a case of cholera should be reported as either V. cholerae
O1 or V. cholerae O139. Only confirmed cases should be reported to NNDSS
by state health departments.