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 73-year-old male who was recently admitted on , for chest pain and ruled in for a myocardial infarction with positive troponin but negative ck, and during this admission was found to have ob positive stool and underwent egd, and was found to have arteriovenous malformations in his stomach a was transfused 3 units of packed red blood cells. he was discharged and aspirin was restarted on . he presents at this time with melena and weakness. hematocrit was 28.5, and he was transfused 2 units of packed red blood cells and admitted to the medical intensive care unit. he underwent and upper endoscopy and was found to have a bleeding arteriovenous malformation in his stomach and underwent bicap. he is now transferred to the medicine service on prilosec, and aspirin is being held. he is currently asymptomatic. no nausea, vomiting, melena or hematochezia. past medical history: 1. hypercholesterolemia. 2. hypertension. 3. prostate cancer, status post radiation therapy. 4. gastritis. 5. coronary artery disease, status post coronary artery bypass graft 11 years ago, right bundle-branch block with sinus bradycardia. no recent cardiac studies. 6. status post appendectomy. 7. status post back surgery. allergies: no known drug allergies. medications at home: cardura 1 mg p.o. q.h.s., aspirin 81 mg p.o. q.d., norvasc 7.5 mg p.o. q.d., vitamin e 400 iu p.o. q.d., baycol 0.4 mg p.o. q.d. (except for tuesdays and saturdays), zantac 150 mg p.o. b.i.d., sublingual nitroglycerin p.r.n. medications on transfer: on transfer, he had received 2 units of packed red blood cells, prilosec 40 mg p.o. b.i.d. social history: positive tobacco, a 50-pack-year history. no alcohol. no iv drug use. lives with wife at home. physical examination: temperature 97.7, pulse 68, respiratory rate 20, blood pressure 134/60, oxygen saturation 99% on room air. in general, he was comfortable, in no acute distress. heent revealed normocephalic/atraumatic. pupils were equal, round and reactive to light. extraocular movements were intact. cardiovascular had regular rate and rhythm, normal s1 and s2. chest was clear to auscultation bilaterally. abdomen was soft and nontender. extremities had no clubbing, cyanosis or edema. laboratory: white blood cell count 6.6, hematocrit 29.5, platelets 140. electrolytes were within normal limits. bun 25, creatinine 1.2. cks were 244 with a negative mb, 211, 208, and troponin 0.2. hospital course: the patient was transferred to the medical service from the medical intensive care unit. he remained with a stable hematocrit and no further abdominal pain, nausea, vomiting, melena or hematochezia. he will continue on prilosec 40 mg p.o. b.i.d. and aspirin will continue to be held. from a cardiovascular standpoint the patient was able to ambulate without and anginal symptoms. he will follow up with dr. on discharge. medications on discharge: 1. cardura 1 mg p.o. q.h.s. 2. norvasc 7.5 mg p.o. q.d. 3. vitamin e 400 iu p.o. q.d. 4. baycol 0.4 mg p.o. q.d. (except for tuesdays and saturdays). discharge diagnoses: upper gastrointestinal bleed with gastric arteriovenous malformation, status post bipolar circumactive probe. condition at discharge: stable. , m.d. dictated by: medquist36 procedure: endoscopic control of gastric or duodenal bleeding diagnoses: coronary atherosclerosis of native coronary artery pure hypercholesterolemia unspecified essential hypertension personal history of malignant neoplasm of prostate aortocoronary bypass status aortic valve disorders right bundle branch block subendocardial infarction, subsequent episode of care angiodysplasia of stomach and duodenum with hemorrhage 

Answer: The patient is high likely exposed to