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: history of present illness: the patient is a 45 year old male with a 24 year history of ulcerative colitis, who on recent colonoscopy was found to have marked polypoid changes in the transverse colon, making ongoing surveillance impossible in terms of cancer prevention. the patient's gastroenterologist performed numerous biopsies in the region with no dysplasia noted on pathology. the ascending colon and cecum were normal grossly as was the rectosigmoid portion of the colon. the patient's gastroenterologist also noted some liver abnormalities on the patient's blood work in terms of decreased platelet count and elevated ast. past medical history: 1. hypertension. 2. aortic and mitral valve insufficiency. 3. alcoholism. 4. crohn's disease. past surgical history: appendectomy. allergies: no known drug allergies. medications on admission: 1. wellbutrin. 2. sulfasalazine. 3. benadryl. 4. vitamins. physical examination: the patient was afebrile with stable vital signs. he appeared reasonably healthy. the patient was hard of hearing. the patient'a abdomen was notable for an umbilical hernia. the patient had a normal anus, anal verge, sphincter tone and mucosa on rectal examination. there was no palpable mass. the patient had early dupuytren's contracture in both palms. no cutaneous spiders were noted. hospital course: the patient was admitted to on , and taken to surgery where he had a total colectomy performed with ileorectal anastomosis. surgery was performed without complications. please refer to the operative note for details. the patient was thereafter transferred to the surgical floor for continued management. over the course of postoperative day number one and postoperative day number two, the patient had moderate and then increasing quantities of blood per rectum. the patient's hematocrit was noted to drop from 30.5 to 25.0. he ultimately required transfer to the surgical intensive care unit for continued management for continued bleeding per rectum as well as frequent need for transfusions. by the morning of postoperative day number two, the patient had received six units of packed red blood cells as well as a unit of platelets. a decision was ultimately made to return the patient to the operating room for suspected bleed at his ileorectal anastomosis. in the operating room, the patient had a hartmann's procedure performed with an end ileostomy and rectal and abdominal washout. the patient was thereafter transferred to the intensive care unit for continued management. the patient's intensive care unit course was notable for persistent low grade temperature that was ultimately determined to be secondary to pneumonia. the patient was appropriately treated with the fever resolving. during the course of the patient's nine day admission in the intensive care unit, the patient also developed significant alcohol withdrawal symptoms. the patient required sedation and remained on a ventilator for much of his intensive care unit stay. he was ultimately extubated on the night of . the patient was also started on total parenteral nutrition while in the intensive care unit. while in the intensive care unit, the patient also developed some erythema of the proximal and distal portions of his midline abdominal incision and was started on kefzol. the erythema ultimately resolved with the therapy. a small portion of the distal end of his wound was opened and was managed with wet to dry packings twice a day. by the time of discharge, the patient continued on wet to dry dressings twice a day and the wound bed was looking healthy and granulating. as part of the workup of the patient's persistent fevers, the patient underwent cat scan of his abdomen on . the cat scan revealed a fluid collection with an enhancing rim adjacent to the patient's rectal suture line. this finding prompted the scheduling of a pouchogram of the patient's rectal stump on . the patient's stump was found not to have a leak on this study. the patient was transferred to a general surgery floor on postoperative day number eleven/nine. his antibiotic therapy was discontinued. as the gas offered from his ostomy increased, the patient's diet was advanced. his nasogastric tube was also discontinued on postoperative day thirteen/eleven. the patient's total parenteral nutrition was discontinued. the patient was ultimately deemed stable and ready for discharge on postoperative day number seventeen/fifteen. prior to discharge, the patient was seen by an addiction counselor. the patient was to follow-up with his primary care physician with arrangements made for further addiction counseling. the patient was also given the name and number of counselor that he could contact. the patient received teaching on the management of his stoma while in house. condition on discharge: stable. medications on discharge: 1. clonidine 0.2 mg once daily patch. 2. metoprolol 50 mg, 0.5 tablets twice a day. 3. percocet one to two tablets every four to six hours. 4. lorazepam 1 mg p.o. one half tablet every six hours as needed. follow-up: the patient was to follow-up with dr. following discharge. the patient was also to follow-up with his primary care physician following discharge. , m.d. dictated by: medquist36 procedure: venous catheterization, not elsewhere classified continuous invasive mechanical ventilation for 96 consecutive hours or more parenteral infusion of concentrated nutritional substances open and other right hemicolectomy other small-to-large intestinal anastomosis other incidental appendectomy alcohol detoxification revision of anastomosis of large intestine ileostomy, not otherwise specified revision of anastomosis of small intestine diagnoses: pneumonia, organism unspecified hemorrhage complicating a procedure blood in stool paralytic ileus alcoholic cardiomyopathy disruption of external operation (surgical) wound alcohol withdrawal delirium ulcerative (chronic) ileocolitis 

Answer: The patient is high likely exposed to