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: is a very pleasant 21-year- old gentleman who has a history of lower gi bleeding that was not characterized 1 year prior to his presentation on this admission. he had recurrent bright red blood per rectum. he required admission to the medical intensive care unit. a bleeding scan was performed which showed rectal bleeding. colonoscopy was performed that showed bright red blood coming from the ileocecal valve. angiography did not demonstrate the bleeding. the patient had a remote history of probable meckel scan positivity at an outside institution but did not have meckel's positivity at this hospital. the patient was admitted on with gastrointestinal bleeding requiring blood cell transfusion and close monitoring. past medical history: 1. history of gi bleeding in . 2. add. 3. motor vehicle accident in requiring orthopedic repairs. medications on admission: none. allergies: no known drug allergies. social history: he is an automobile technician. he denies tobacco or other illicit drugs. he drinks alcohol occasionally. he is single. he lives with his parents. family history: negative for colon cancer, ibd, or gi bleeds. his father has diabetes and his sister has juvenile onset rheumatoid arthritis. medications upon admission: protonix 40 mg iv q.24 h. hospital course: was admitted to the medical service on . a gi consult was obtained. the patient underwent a bleeding scan, colonoscopy, and 2 angios. he continued to bleed and the bleeding was not clear, although a meckel's was suspected. he was taken to the operating room on and underwent an exploratory laparotomy and small bowel resection for a large meckel diverticulum which was the clear source of bleeding. his bleeding stopped postoperatively. he had an elevated white blood cell count postoperatively and redness at his incision. the wound was opened. a large amount of purulent material was found. the wound was dressed and then a vac drain was applied. he was advanced to a regular diet when his bowels functioned and he was discharged on with a vac dressing to the wound and for postoperative follow-up with dr. . discharge medications: 1. levofloxacin 500 mg orally once a day. 2. flagyl 500 mg orally 3 times a day. 3. percocet p.r.n. pain. 4. colace for stool softening. , md dictated by: medquist36 d: 08:50:16 t: 10:33:32 job#: procedure: other partial resection of small intestine injection or infusion of other therapeutic or prophylactic substance colonoscopy arteriography of other intra-abdominal arteries arteriography of other intra-abdominal arteries other incidental appendectomy transfusion of packed cells small-to-small intestinal anastomosis transfusion of other serum other immobilization, pressure, and attention to wound diagnoses: other postoperative infection cellulitis and abscess of trunk acute posthemorrhagic anemia meckel's diverticulum other and unspecified diseases of appendix 

Answer: The patient is high likely exposed to