Consider the following medical report that includes the patient's historical health records. Use it to predict the disease that the patient is high likely exposed to. 

 Medical Report: past medical history: 1. hypertension. 2. dementia. 3. atypical psychosis. 4. tremor disorder thought to be parkinsonian in nature but this has not been evidently sorted out. physical examination on admission: the patient was somewhat somnolent but was arousable to voice and to noxious stimuli. his vital signs included a temperature of 103.6, heart rate 120, blood pressure 60/30 that improved to 100/50 with volume infusion. his examination was notable for coarse breath sounds at the bilateral lower lobe bases and some abdominal distention. hospital course: the patient was admitted to the medical intensive care unit with sepsis thought to possibly be due to underlying pneumonia; however, the patient had an enormous volume requirement of approximately 15 liters over the subsequent two days and began having copious diarrhea which suggested possible fulminant c. difficile colitis. indeed, a stool sample did come back early in his hospital course that was positive for c. difficile. on hospital day number four, the surgical team was consulted and we reviewed his ct scan which showed evidence of pancolitis. his history and hospital course were consistent with fulminant colitis for which it seemed that surgery really was the only option as he had been on intravenous flagyl for the first four days of his hospital course as part of his treatment for sepsis. however, the patient had already been started on pressors including levophed. thus, surgery was deemed to be high risk. we met with the family and discussed the treatment options including additional and alternative medical interventions as well as surgery which would specifically be total abdominal colectomy with an end-ileostomy. we told the family that surgery would be high risk but they felt that since this really represented his only chance of recovery that they wanted us to proceed. thus, on , we took the patient to the operating room and performed a total abdominal colectomy. we found a large distended colon with extensive intra-abdominal ascites. the pathology on the specimen did indeed show pseudomembranous colitis. at the end of the case, we were manipulating the nasogastric tube and this created a splenic capsular tear which we attempted to control with surgicel and electrocautery. however, the bleeding continued so we ended up performing an expeditious splenectomy. postoperatively, the patient did respond initially to continued aggressive resuscitation with some improvement in his hemodynamics. however, his postoperative course remained somewhat and he was diagnosed with e. coli pneumonia which was likely due to preoperative aspiration. in addition, he had evidence of ards by chest x-ray and ventilator mechanics. he also was found to have a persistent contractable colitis of his rectal stump which retreated in consultation with gastroenterology with a single dose of iv ig and in consultation with id with vancomycin enemas in his rectal stump. the patient did improve after these interventions but he really had some difficulty weaning off the pressors. he was thus tested for adrenal insufficiency which was found to be positive. two weeks into his postoperative course, however, the patient remained on the ventilator and was still rather unstable from a respiratory standpoint with continued ards from his underlying aspiration e. coli pneumonia and massive fluid overload from his perioperative resuscitation. thus, at this point, the family expressed desires to withdrawal care and make him comfort measures only. this was instituted on the evening of postoperative day number 18. the patient expired shortly thereafter. an autopsy was declined by the family. discharge diagnosis: 1. fulminant c. difficile colitis, status post total abdominal colectomy and incidental splenectomy on . 2. e. coli pneumonia. 3. adult respiratory distress syndrome. 4. pseudomembranous proctitis. 5. adrenal insufficiency. 6. hypertension. 7. delirium. , m.d. dictated by: medquist36 procedure: fiber-optic bronchoscopy total splenectomy other permanent ileostomy diagnoses: unspecified septicemia accidental puncture or laceration during a procedure, not elsewhere classified hemorrhage complicating a procedure pneumonitis due to inhalation of food or vomitus intestinal infection due to clostridium difficile pneumonia due to escherichia coli [e. coli] megacolon, other than hirschsprung's 

Answer: The patient is high likely exposed to