RT Journal A1 Kaplan LR T1 COntamination of fiberoptic upper intestinal endoscope JF JAMA JO JAMA YR 1979 FD August 3 VO 242 IS 5 SP 415 OP 415 DO 10.1001/jama.1979.03300050013012 UL http://dx.doi.org/10.1001/jama.1979.03300050013012 AB To the Editor.—  The article by Beecham et al (241:1013, 1979), "Salmonella typhimurium: Transmission by Fiberoptic Upper Gastrointestinal Endoscopy," is an important reminder to endoscopists that their instruments may infect patients. However, when discussing possible sources of infection, the authors failed to mention culturing the endoscopy wash bottle, a reservoir common to all procedures. The antifoaming simethicone solution routinely placed into the wash bottle may also be source of contamination. The wash bottle should be regularly disinfected, and the simethicone solution should be discarded after its expiration date.