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: this is a 74-year-old spanish-speaking gentleman who, prior to admission, had symptoms of progressive angina; specifically, exertional angina. the patient was referred by his primary care physician for outpatient stress test and cardiac catheterization. he underwent echocardiography on , and the impression from that test was no echocardiographic evidence of inducible ischemia to achieved workload. he also underwent an exercise tolerance test on , which showed anginal-type symptoms with probable ischemic electrocardiogram changes. on , he also had an echocardiogram which showed moderate aortic stenosis, mild aortic regurgitation, mild mitral regurgitation, symmetric left ventricular hypertrophy with preserved systolic function. a note from this echocardiogram was that based on the aha endocarditis prophylaxis guidelines, that the echocardiogram findings from this test indicated a moderate risk, and that he should receive prophylaxis in the future. past medical history: (significant for) 1. osteoarthritis of the lower back. 2. hypertension. 3. high cholesterol. medications on admission: meclizine 25 mg p.o. t.i.d., cozaar 100 mg p.o. q.d., atenolol 100 mg p.o. b.i.d., isordil 40 mg p.o. t.i.d., relafen as needed, aspirin 325 mg p.o. q.d. allergies: the patient has no known drug allergies. hospital course: the patient underwent a cardiac catheterization on , which showed pulmonary artery pressures systolic between 32 and 56, and diastolic between 18 and 26. the aortic pressures were 190/70. the left ventricular pressures were 210/28. he was also found to have an ejection fraction of 65%, 70% stenosis of the left main, and 2-vessel disease. based on this, and the patient's history, it was decided that the patient would undergo a coronary artery bypass graft which was planned for the following day. on , the patient underwent a coronary artery bypass graft times three with internal mammary artery to the left anterior descending artery and saphenous vein graft to the posterior descending artery and the obtuse marginal. indication for this was aortic stenosis and cardiac catheterization results as well as worsening angina. the aortic valve was replaced with a pericardial tissue heart valve of a bovine origin. one additional note is that, after cardiac catheterization, the patient had an intra-aortic balloon pump placed preoperatively, and then the following morning went to the operating room. the patient's primary cardiologist, dr. , was involved with his care leading up to the surgery. the patient had an uncomplicated perioperative period. he was transferred to the cardiothoracic intensive care unit. he did receive 1 unit of packed red blood cells. the patient was stable and the balloon pump was removed, and he was transferred to the floor on postoperative day two, and on postoperative day three the patient was transfused with 2 units secondary a hematocrit of 19.8. with that hematocrit he was also complaining of some dizziness, and this was making ambulating difficult. however, gradually worked with physical therapy and was ambulating around the hallway with assistance, and his hematocrit on discharge was 26 and steadily rising. on the floor, the patient occasionally had a increased heart rate with some premature ventricular contractions. this was treated successfully with increased lopressor, which he tolerated, and the patient was in sinus rhythm on discharge. the patient required aggressive respiratory treatments in order to maintain his oxygen saturations, which he did adequately. on discharge his lungs were clear with some mild crackles at the bases. medications on discharge: 1. lopressor 75 mg p.o. b.i.d. 2. lasix 20 mg p.o. b.i.d. 3. 20 meq p.o. b.i.d. 4. isordil 40 mg p.o. t.i.d. 5. lipitor 10 mg p.o. q.d. 6. meclizine 25 mg p.o. t.i.d. 7. cozaar 100 mg p.o. q.d. 8. percocet 5 one to two tablets p.o. q.4-6h. p.r.n. 9. aspirin 81 mg p.o. q.d. 10. colace 100 mg p.o. b.i.d. 11. zantac 150 mg p.o. b.i.d. 12. dulcolax suppository 10 mg p.r. q.d. p.r.n. 13. motrin 400 mg p.o. q.6h. p.r.n. 14. serax 15 mg p.o. q.h.s. p.r.n. 15. benadryl 25 mg p.o. q.h.s. p.r.n. condition at discharge: improved and stable. discharge status: the patient was to go to a rehabilitation facility. discharge diet: low-sodium/low-fat diet. discharge goals: physical therapy for increased mobility, wound care as needed, respiratory care, and improvement of his activities of daily living. rehabilitation potential was good. discharge diagnoses: 1. status post coronary artery bypass graft times three. 2. status post aortic valve replacement (bovine). 3. status post cardiac catheterization on . fo instructions: 1. call dr. office for followup. 2. call primary care physician for followup in one to two weeks. , m.d. dictated by: medquist36 procedure: single internal mammary-coronary artery bypass extracorporeal circulation auxiliary to open heart surgery combined right and left heart cardiac catheterization coronary arteriography using two catheters (aorto)coronary bypass of two coronary arteries angiocardiography of left heart structures open and other replacement of aortic valve with tissue graft implant of pulsation balloon diagnoses: anemia, unspecified coronary atherosclerosis of native coronary artery intermediate coronary syndrome pure hypercholesterolemia unspecified essential hypertension aortic valve disorders other chronic pulmonary heart diseases intestinal disaccharidase deficiencies and disaccharide malabsorption other premature beats 

Answer: The patient is high likely exposed to