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: allergies: patient recorded as having no known allergies to drugs attending: chief complaint: ischemic colitis and s/p multiple colonic resections major surgical or invasive procedure: ileostomy takedown foley catheter placement history of present illness: 48-year-old man who initially entered the hospital in after being stabbed in the left upper quadrant of the abdomen. he ultimately underwent multiple surgical procedures with prolonged stays in the icu marked by sepsis and respiratory failure. at the time of his initial presentation, i had performed exploratory laparotomy with the finding of a large middle colonic mesenteric hematoma. the hematoma was debrided. the area of affected transverse colon appeared to be viable, despite it having been somewhat denuded of its feeding mesentery, and i did not resect it at that time. he had been left open at that time and 2 days later i closed his abdomen definitively. approximately 1 week later, dr. reoperated on the patient on the trauma service because of ongoing infection and a ct scan that suggested that the distal transverse colonic segment might be ischemic. he performed a transverse colectomy at that time. the pathology actually showed completely viable bowel. the patient ultimately was discharged to home later that month of . however, he then returned on with peritonitis and was again operated on by dr. , with the findings of a necrotic right colon. this was resected and an ileostomy was formed with a hartmann's pouch beginning at approximately the level of the sigmoid. the patient then recovered from that surgery and in returned for closure of his ileostomy by dr. , who anastomosed it to the mid sigmoid. i then became re-involved with the patient. he was re-admitted about 2 weeks after the ileostomy closure with an anastomotic leak and sepsis. i reoperated on the patient again on , with drainage of his abscess and an extensive lysis of adhesions. this operation proved to be extremely difficult and it was not possible to completely visualize the old anastomosis. i recreated his diverting loop ileostomy at that time. the patient then recovered and went to live with his sister. his social situation improved, as did his nutrition. he became less dependent on alcohol. he gained approximately 50 pounds. he re-presented to me about a year later in , requesting closure of his ileostomy. i obtained a barium enema demonstrating patency of the ileosigmoid anastomosis with no evidence of leak. as the patient was highly motivated, i consented to proceed with ileostomy closure. however, he was counseled that due to his previous complex operative course, he certainly would be at much higher risk for complications than someone else. furthermore, because of his multiple prior surgeries, any reoperation for an emergent condition would undoubtedly be accompanied by a much higher rate of potential further complications than otherwise. with this knowledge, the patient still desired to proceed. past medical history: anxiety social history: positive for alcohol, half a pint of vodka three times per month when stressed. he has a 30 pack-year history of tobacco. the patient is homeless. there is a question of drug use. the patient stays at his sister's house at times. physical exam: on admission, the patient's physical exam is as follows: vitals: t=97.1, p=77, bp=107/63, r=20, spo2=99% ra gen: nad heent: perrl cvs: rrr pulm: cta bilaterally abd: soft, nt/nd, +bs, multiple scars ext: no edema neuro: no focal deficits brief hospital course: mr. was admitted to dr. service at on . he then underwent a reversal of his ileostomy on that same day and tolerated the procedure well. for details of the procedure, see operative note. his post-operative course has been unremarkable--pain was well controlled, intake and output was monitored and always within normal and pain was well controlled. his bowel function has slowly returned and by post-operative day 4 was passing flatus. his diet was slowly advanced starting with sips on pod 2 and then eventually to a regular house diet on pod 4. throughout his course he was given ativan per ciwa recommendations for prophylaxis against alcohol withdrawal given his social history. pt was to be discharged on pod #5, however, he became nauseous, vomited, and his discharged was postponed. mr. was made npo, an ng tube was placed and for the next several days he produced large amounts of bilious output. cvl was placed and tpn was initiated. on , pt became febrile with a temperature to 102.3- zosyn was started prophylactically. cxr was obtained which revealed no definite evidence for pna. ct abd/pelvis was obtained, as well, which revealed a small amount of fluid around anastomosis, but no definite evidence of abscess or obstruction. by , mr. began having several bowel movements a day with large amounts of flatus. his ng output began to decline tremendously by , and his ng tube was dc'd on . he began taking sips of liquid which he tolerated well. he was advanced to clear liquids on , which he tolerated well. tpn was stopped, and he was advanced to regular diet on , which again, was tolerated very well. he continued to pass large amounts of flatus, ambulate often, and remained pain free. he was discharged in good condition on . medications on admission: lorazapam 0.5mg po prn albuterol prn discharge medications: 1. nicotine 21 mg/24 hr patch 24hr sig: one (1) patch 24hr transdermal daily (daily). disp:*qs patch 24hr(s)* refills:*2* 2. hydromorphone hcl 4 mg tablet sig: one (1) tablet po q2-4hrs:prn as needed for pain. disp:*30 tablet(s)* refills:*0* 3. pantoprazole sodium 40 mg tablet, delayed release (e.c.) sig: one (1) tablet, delayed release (e.c.) po q24h (every 24 hours). disp:*30 tablet, delayed release (e.c.)(s)* refills:*1* 4. colace 100 mg capsule sig: two (2) capsule po once a day as needed for constipation. disp:*60 capsule(s)* refills:*1* discharge disposition: home discharge diagnosis: ileostomy takedown discharge condition: good discharge instructions: take all medications as prescribed. seek medical attention if you experience fever, chills, nausea, vomiting, or increased abdominal pain. followup instructions: please follow-up with dr. in weeks. please call for an appointment. md, procedure: venous catheterization, not elsewhere classified parenteral infusion of concentrated nutritional substances closure of stoma of small intestine diagnoses: paralytic ileus attention to ileostomy 

Answer: The patient is high likely exposed to