Non-Cholera Vibrio Infections in the United States

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Abstract
Non-cholera vibrios are organisms that are biochemically indistinguishable from Vibrio cholerae but do not agglutinate in Vibrio O group 1 antiserum. Since 1972 there was a dramatic increase in the number of these organisms referred to the Center for Disease Control for identication. Clinical, epidemiologic and laboratory data were analyzed for 26 of 28 patients with isolates identified between Jan. 1972 and March 1975. Thirteen (50%) of the isolates were obtained from feces of patients who had an acute diarrheal illness; no other pathogens were isolated from their feces, and all patients survived. Four (15%) patients had non-cholera vibrios isolated from other gastrointestinal or biliary tract sites; none of these patients had acute illness definitely attributable to non-cholera vibrios. Nine (35%) patients had non-cholera vibrios isolated from other tissues and body fluids; 4 deaths occurred in this group. Patients with acute diarrhea frequently had a history of recent shellfish ingestion or foreign travel, whereas some patients with systemic non-cholera vibrio infection had a history of recent occupational or recreational exposure to salt water.

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