it's called kpc.o one knows exactly how many patients in the new york city area have been infected with kpc... or how many have died from it. nationally, most hospitals aren't required to report outbreaks to the government and most won't talk publicly about them. but as part of frontline's investigation, one of the nation's most prestigious hospitals, the clinical center at the national institutes of health, the n.i.h., agreed to recount how it dealt with a major kpc outbreak. (siren wailing) it began in the summer of 2011, when a woman carrying kpc was transferred from a new york city hospital, here, to the n.i.h., in bethesda, maryland. >> talking about hospital infections is really difficult for a hospital because what you are saying is that we all know that when you come to the hospital there are certain risks. but we have now laid bare what are those risks. >> narrator: the n.i.h. had never treated a case of kpc before. and as the patient was brought into the icu, the staff was determined to keep