In an ominous sign for patient safety, 71% of reusable medical scopes deemed ready for use on patients tested positive for bacteria at three major U.S. hospitals, according to a new study. The paper, published recently in the American Journal of Infection Control, underscores the infection risk posed by a commonly used endoscopes. It signals a lack of progress by manufacturers, hospitals and regulators in reducing contamination despite numerous reports of superbug outbreaks and patient deaths, experts say. "These results are pretty scary," said Janet Haas, president of the Association for Professionals in Infection Control and Epidemiology. "These are very...