In this issue of Marmara Medical Journal, Tôzün et al.(1) evaluate seroprevalence of H. pylori infection in endoscopists and ICU nurses. Although they found higher prevalences in endoscopy and ICU personnel with respect to controls, the difference did not reach to statistical significance. They propose that in areas with H.pylori endemicity, where acquisition occurs at a relatively earlier age, neither endoscopy nor ICU care increase the acquisition of H.pylori by close contact with patients.