Salmonella typhimurium

Abstract
During a four-month period,Salmonella typhimuriumdeveloped in seven persons within five days of fiberoptic upper gastrointestinal (GI) endoscopy. A retrospective cohort study confirmed the association betweenS typhimuriuminfection and fiberoptic upper GI endoscopy.Salmonella typhimuriumwas cultured from the endoscopic equipment and the accessory suction equipment. TheSalmonellaisolated 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.Salmonellatransmission was attributed to inadequate disinfection of the endoscope and accessory equipment between procedures. The original source of the contamination was not discovered. (JAMA241:1013-1015, 1979)

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