[Skip to Content]
[Skip to Content Landing]
March 9, 1979

Salmonella typhimurium: Transmission by Fiberoptic Upper Gastrointestinal Endoscopy

Author Affiliations

From the Bureau of Epidemiology, Divisions of Field Services (Dr Beecham) and Bacterial Diseases (Dr Cohen), Center for Disease Control, Public Health Service, Atlanta, and the Division of Communicable Disease Control (Drs Beecham and Parkin), Commonwealth of Pennsylvania Department of Health, Harrisburg. Dr Beecham is now with the Department of Medicine, M. S. Hershey Medical Center, Hershey, Pa.

JAMA. 1979;241(10):1013-1015. doi:10.1001/jama.1979.03290360029022

During a four-month period, Salmonella typhimurium developed in seven persons within five days of fiberoptic upper gastrointestinal (GI) endoscopy. A retrospective cohort study confirmed the association between S typhimurium infection and fiberoptic upper GI endoscopy. Salmonella typhimurium was cultured from the endoscopic equipment and the accessory suction equipment. The Salmonella isolated from the endoscopic and accessory suction equipment was identical to that recovered from the seven patients with salmonellosis by serotype, antimicrobial susceptibility pattern, and bacteriophage lysis pattern. Salmonella transmission was attributed to inadequate disinfection of the endoscope and accessory equipment between procedures. The original source of the contamination was not discovered.

(JAMA 241:1013-1015, 1979)