The deadly pattern of illnesses began to emerge in 2012 at hospitals in Seattle, Pittsburgh, Chicago. In each case, the culprit was a bacteria known as CRE, perhaps the most feared of superbugs, because it resists even “last defense” antibiotics — and kills up to 40% of the people it infects.
And in each case, investigators identified the same source of transmission: a specialized endoscope, threaded down the throat of a half-million patients a year to treat gallstones, cancers and other disorders of the digestive system. They found that the devices, often called duodenoscopes, accumulate bacteria that are not always removed by conventional cleaning, so infections can pass from patient to patient.
