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: lactose attending: chief complaint: syncope x 2 over last 3 months and dyspnea on exertion major surgical or invasive procedure: aortic valve replacement with 21-mm biocor epic tissue valve history of present illness: this is an 80yo male with known aortic stenosis followed by serial echos over past 7 years. presents with recurrent syncopal episodes. his most recent was . syncopal episode prior to that was . he is now referred for aortic valve replacement. past medical history: hypertension hyperlipidemia basal cell ca basal cell excision-leg and back social history: race: caucasian last dental exam: or lives with: alone occupation: -security tobacco: denies etoh: rare glass of wine family history: no family history of early mi, arrhythmia, cardiomyopathies, or sudden cardiac death physical exam: pulse: 92 resp: 18 o2 sat: 99%-ra b/p right: 128/58 left: 132/64 height: 68" weight: 170 lbs general: nad skin: warm dry intact heent: ncat perrla eomi benign oropharynx neck: supple full rom no jvd chest: lungs clear bilaterally heart: rrr murmur: 3/6 sem abdomen: soft non-distended non-tender bowel sounds + extremities: warm , well-perfused edema: none varicosities: none neuro: a&o x3, mae, nonfocal exam pulses: femoral right: 2+ left: 2+ dp right: 2+ left: 2+ pt : 2+ left: 2+ radial right: 2+ left: 2+ carotid bruit- radiated murmur bilat pertinent results: echo: pre-bypass: the left atrium is mildly dilated. no spontaneous echo contrast or thrombus is seen in the body of the left atrium or left atrial appendage. no atrial septal defect is seen by 2d or color doppler. there is mild symmetric left ventricular hypertrophy. the left ventricular cavity size is normal. overall left ventricular systolic function is normal (lvef>55%). right ventricular chamber size and free wall motion are normal. there are simple atheroma in the ascending aorta. there are simple atheroma in the descending thoracic aorta. the aortic valve leaflets are severely thickened/deformed. there is severe aortic valve stenosis (valve area 0.8-1.0cm2). moderate to severe (3+) aortic regurgitation is seen. the mitral valve leaflets are mildly thickened. mild (1+) mitral regurgitation is seen. there is no pericardial effusion. post cpb: 1. preserved biventricular systlic function 2. bioprosthetic valve in aortic position. well seated and stable, good leaflet excursion. 3.peak gradient = 39 mm hg. cardiac output = 6 litersw/min 4. no other change brief hospital course: mr. was a same day admit after undergoing pre-operative work-up prior to admission. on he was brought directly to the operating room where he underwent an aortic valve replacement. please see operative report for surgical details. following surgery he was transferred to the cvicu for invasive monitoring. within 24 hours he was weaned from sedation, awoke neurologically intact and extubated. on post-op day one he was transferred to the telemetry floor for further care. beta blockers and diuretics were started and he was gently diuresed towards his pre-op weight. chest tubes and epicardial pacing wires were removed per protocol. on post-op day two he required blood transfusion for low hct (rose from 23 to 32). he worked with physical therapy for strength and mobility during his post-op period. on post-op day four he was discharged to rehab (west acres) with the appropriate medications and follow-up appointments. medications on admission: simvastatin 20mg daily multivitamin daily aspirin 81mg 3x/wk, metoprolol 50mg daily discharge medications: 1. simvastatin 10 mg tablet sig: two (2) tablet po daily (daily). 2. docusate sodium 100 mg capsule sig: one (1) capsule po bid (2 times a day). 3. aspirin 81 mg tablet, delayed release (e.c.) sig: one (1) tablet, delayed release (e.c.) po daily (daily). 4. metoprolol tartrate 50 mg tablet sig: one (1) tablet po tid (3 times a day). 5. ranitidine hcl 150 mg tablet sig: one (1) tablet po daily (daily). 6. oxycodone-acetaminophen 5-325 mg tablet sig: 1-2 tablets po q4h (every 4 hours) as needed for pain. disp:*65 tablet(s)* refills:*0* 7. magnesium hydroxide 400 mg/5 ml suspension sig: thirty (30) ml po hs (at bedtime) as needed for constipation. 8. acetaminophen 325 mg tablet sig: two (2) tablet po q4h (every 4 hours) as needed for pain. 9. lasix 20 mg tablet sig: one (1) tablet po twice a day for 7 days. tablet(s) 10. potassium chloride 20 meq tab sust.rel. particle/crystal sig: one (1) tab sust.rel. particle/crystal po twice a day for 7 days. discharge disposition: extended care facility: rehabilitation and nursing center - discharge diagnosis: aortic stenosis s/p aortic valve replacement past medical history: hypertension hyperlipidemia basal cell ca basal cell excision-leg and back discharge condition: alert and oriented x3 nonfocal ambulating with steady gait incisional pain managed with incisions: sternal - healing well, no erythema or drainage trace edema discharge instructions: please shower daily including washing incisions gently with mild soap, no baths or swimming until cleared by surgeon. look at your incisions daily for redness or drainage please no lotions, cream, powder, or ointments to incisions each morning you should weigh yourself and then in the evening take your temperature, these should be written down on the chart no driving for approximately one month and while taking narcotics, will be discussed at follow up appointment with surgeon when you will be able to drive no lifting more than 10 pounds for 10 weeks please call with any questions or concerns **please call cardiac surgery office with any questions or concerns . answering service will contact on call person during off hours** followup instructions: you are scheduled for the following appointment surgeon: dr. on at 1:30pm please call and schedule an appointment to be see by your cardiologist: dr. in 4 weeks please call to schedule appointments with your primary care dr. in weeks **please call cardiac surgery office with any questions or concerns . answering service will contact on call person during off hours** procedure: extracorporeal circulation auxiliary to open heart surgery open and other replacement of aortic valve with tissue graft diagnoses: unspecified essential hypertension aortic valve disorders other and unspecified hyperlipidemia other specified cardiac dysrhythmias personal history of other malignant neoplasm of skin examination of participant in clinical trial first degree atrioventricular block 

Answer: The patient is high likely exposed to