More than 100 patients who had colonoscopies between 2011 and 2013 at Seattle Children’s have been advised to be tested for hepatitis B and C and HIV after the hospital discovered special equipment used in the procedures had not been properly cleaned. ... The hospital found that technicians weren’t sufficiently trained on the proper procedures, which led to the scopes being used again before they were ready, DiNuzzo said. The hospital did not inform patients earlier because officials wanted to do a thorough investigation and not unnecessarily alarm patients, Zerr said. From July 2011 to 2013, the hospital can't be...