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: shortness of breath major surgical or invasive procedure: aortic valve replacment with 23mm ce rsr pericardial tissue valve history of present illness: 72 y/o male c/o shortness of breath and fatigue for several months. symptoms have been worsening over the last several days. at osh he underwent a cardiac cath and echocardiogram. results showed severe aortic insufficiency with dilated left ventricle, normal ef and clean coronaries. he was transferred to for surgical intervention. past medical history: hypertension, s/p turp, s/p repair of right femoral fracture social history: lives with wife. quit smoking 25 years ago after 20 yr hx. denies alcohol. family history: nc physical exam: heent: eomi, perrl, ncat chest: ctab -w/r/r cardiac: rrr 4/6 diastolic murmur loudest at l sternal border abd: soft, nt/nd +bs ext: warm, dry -c/c/e neuro: a&o x 3, non-focal pertinent results: 05:10am blood wbc-9.2 rbc-2.99* hgb-9.5* hct-27.3* mcv-91 mch-31.6 mchc-34.7 rdw-16.3* plt ct-278 01:15pm blood glucose-92 urean-21* creat-1.5* na-138 k-4.9 cl-101 hco3-26 angap-16 02:00pm blood alt-17 ast-28 ld(ldh)-259* alkphos-89 amylase-223* totbili-0.2 brief hospital course: as mentioned in the hpi, mr. was transferred from osh for surgery. upon admission he underwent usual pre-operative work-up. dental surgery was consulted and cleared patient for valve surgery. on he was brought to the operating room where he underwent a aortic valve replacement. please see operative report for surgical details. he tolerated the porcedure well and was transferred to the csru for invasive monitoring in stable condition. later on op day he was weaned from sedation, awoke neurologically intact and extubated. his blood pressure was labile and did require nitroglycerin drip for hypertension. eventually beta blockers and diuretics were initiated and he was gently diuresed towards his pre-op weight. his chest tubes were removed on post-op day one. he appeared hemodynamically stable on this day and was transferred to the sdu. on post-op day three his epicardial pacing wires were removed. physical therapy followed patient for strength and mobility. he had a low grade fever on , and was kept to follow his temp & wbc, both of which have remained normal. he continued to improve clinically and on /06four he was discharged home with vna services and the appropriate follow-up appointments. medications on admission: aspirin 325mg qd, enalipril 20mg qd discharge medications: 1. docusate sodium 100 mg capsule sig: one (1) capsule po bid (2 times a day). disp:*60 capsule(s)* refills:*1* 2. aspirin 81 mg tablet, delayed release (e.c.) sig: one (1) tablet, delayed release (e.c.) po daily (daily). disp:*30 tablet, delayed release (e.c.)(s)* refills:*2* 3. atorvastatin 10 mg tablet sig: one (1) tablet po daily (daily). disp:*30 tablet(s)* refills:*1* 4. oxycodone-acetaminophen 5-325 mg tablet sig: 1-2 tablets po q4h (every 4 hours) as needed for pain. disp:*40 tablet(s)* refills:*0* 5. captopril 12.5 mg tablet sig: one (1) tablet po tid (3 times a day). disp:*90 tablet(s)* refills:*1* 6. ferrous gluconate 300 mg tablet sig: one (1) tablet po daily (daily). disp:*30 tablet(s)* refills:*1* 7. ascorbic acid 500 mg tablet sig: one (1) tablet po bid (2 times a day). disp:*60 tablet(s)* refills:*1* 8. potassium chloride 20 meq packet sig: one (1) packet po twice a day for 7 days. disp:*14 packet(s)* refills:*0* 9. ranitidine hcl 150 mg tablet sig: one (1) tablet po bid (2 times a day). disp:*60 tablet(s)* refills:*2* 10. lasix 20 mg tablet sig: one (1) tablet po twice a day for 7 days. disp:*14 tablet(s)* refills:*0* 11. metoprolol tartrate 25 mg tablet sig: three (3) tablet po bid (2 times a day). disp:*180 tablet(s)* refills:*2* discharge disposition: home with service facility: multicultural vna discharge diagnosis: aortic insufficiency s/p aortic valve replacement pmh: hypertension, s/p turp, s/p repair of right femoral fracture discharge condition: good discharge instructions: you may shower. wash incision and gently pat dry. do not take bath or swim. do not apply lotions, creams, ointments or powders to incision. do not drive for 1 month. do not lift greater than 10 pounds for 2 months. if you develop a fever, redness or drainage from incision, please contact office immediately. followup instructions: dr. in 4 weeks dr. in weeks dr. in weeks procedure: extracorporeal circulation auxiliary to open heart surgery open and other replacement of aortic valve with tissue graft diagnoses: unspecified essential hypertension cardiac complications, not elsewhere classified atrial fibrillation aortic valve disorders 

Answer: The patient is high likely exposed to