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: aspirin attending: chief complaint: heart murmur major surgical or invasive procedure: aortic valve replacement with 21mm ce pericardial valve history of present illness: 63 y/o female who was found to have heart murmur and echo detected severe aortic stenosis. cath confirmed echo results and showed no coronary artery disease. she was then referred for aortic valve replacement. past medical history: aortic stenosis hypertension polycythemia myelodysplastic syndrome pneumonia s/p bunion removal s/p t&a s/p laser eye surgery social history: widow, live alone. denies tobacco or etoh use. family history: non-contributory physical exam: vs: 110 20 148/72r 140/70l 5'3" 138# general: wdwn, nad, pleasan affect skin: unremarkable, w/d heent: nc/at, eomi, perrl neck: supple, from, -jvd heart: rrr 4/6 sem radiating to carotids abd: soft, nt/nd, +bs ext: warm, well-perfused with 2+ edema, -varicosities neurp: non-focal, mae, a&ox3 pertinent results: echo : prebypass: overall left ventricular systolic function is normal (lvef>55%). the lv is symmetrically hypertrophied (1.5cm). the aortic valve leaflets are moderately thickened. there is severe aortic valve stenosis. mild to moderate (+) aortic regurgitation is seen. the mitral valve leaflets are mildly thickened. mild (1+) mitral regurgitation is seen. the mr is central. there is mild tricuspid regurgitation. post bypass: biprosthetic valve seen in the aortic position. leaflets move well and the valve appears well seated. there is trace aortic insufficiency. mild mr persists post bypass cxr : there has been interval decrease in size of a right apical pneumothorax with a minimal pneumothorax remaining. cardiac and mediastinal contours are stable. bibasilar atelectatic changes are noted with interval improvement in the left lower lobe and no significant change in the right lower lobe. there is otherwise no significant change since the recent radiograph of one day earlier. 10:52am blood wbc-37.0* rbc-2.10*# hgb-6.7*# hct-21.4*# mcv-102*# mch-31.8 mchc-31.2 rdw-24.7* plt ct-241 08:20am blood wbc-73.3* rbc-3.88* hgb-12.2 hct-38.7 mcv-100* mch-31.6 mchc-31.6 rdw-25.8* plt ct-311 05:15am blood wbc-47.8* rbc-3.42* hgb-10.9* hct-34.8* mcv-102* mch-31.9 mchc-31.4 rdw-25.9* plt ct-306 10:52am blood pt-16.8* ptt-28.0 inr(pt)-1.5* 02:00am blood pt-14.2* ptt-24.3 inr(pt)-1.3* 08:20am blood calcium-8.6 mg-2.8* 01:23pm blood urean-25* creat-1.2* cl-110* hco3-25 05:45am blood glucose-65* urean-47* creat-1.2* na-137 k-4.7 cl-101 hco3-24 angap-17 09:26pm blood k-4.7 09:26pm blood freeca-1.21 brief hospital course: patient had her pre-operative work-up as an out patient and was a same day admit. on she was brought directly to the operating room where she underwent an aortic valve replacement. please see op note for surgical details. she tolerated the procedure well and was brought to the csru in stable condition on minimal inotropic support. patient was transfused to keep hct approximately 30. later on op day she was weaned from sedation, awoke neurologically intact and was extubated. inotropes were weaned by post-op day one and she was started on a nitro gtt for hypertension. b blockers and diuretics were initiated and she was gently diuresed throughout her post-op course. chest tubes were removed on post-op day one and she was then transferred to the cardiac surgery step-down unit. pre-operative medications were started for her polycythemia and myelodysplastic syndrome. her labs were stable throughout her hospital course with slight increase in her creatinine that came down to baseline at time of discharge. also, her wbc remained quite elevated throughout hospital course (reaching over 70,000 on pod#2) and eventually coming down to 47,000 at time of discharge. her epicardial pacing wires were removed on post-op day three. physical therapy followed her during entire post-op course for strength and mobility. she improved rather well and was at level 5 by post-op day 4. she remained slightly above her pre-op weight and was discharged with diuretics. she was discharged home on post-op day four with vna services and appropriate follow-up appointments. medications on admission: folic acid 2mg qd, anagrelide 5mg qd, omeprazole 20mg qd, hydroxyurea 1500/1000mg alternating qd, allopurinol 400mg qd, toprol xl 100mg qd, fludrocort 0.1mg 3x/wk, lasix 20/10mg alternating qd, prednisone 15/20mg alternating qd discharge medications: 1. furosemide 20 mg tablet sig: one (1) tablet po bid (2 times a day) for 10 days. disp:*20 tablet(s)* refills:*0* 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. docusate sodium 100 mg capsule sig: one (1) capsule po bid (2 times a day). disp:*60 capsule(s)* refills:*0* 4. folic acid 1 mg tablet sig: one (1) tablet po daily (daily). disp:*30 tablet(s)* refills:*2* 5. loratadine 10 mg tablet sig: one (1) tablet po daily (). disp:*30 tablet(s)* refills:*2* 6. pantoprazole 40 mg tablet, delayed release (e.c.) sig: one (1) tablet, delayed release (e.c.) po q24h (every 24 hours). disp:*30 tablet, delayed release (e.c.)(s)* refills:*0* 7. oxycodone-acetaminophen 5-325 mg tablet sig: 1-2 tablets po q4h (every 4 hours) as needed for pain. disp:*50 tablet(s)* refills:*0* 8. allopurinol 100 mg tablet sig: one (1) tablet po daily (daily): take with one 300mg (total 400mg) daily. disp:*30 tablet(s)* refills:*1* 9. allopurinol 300 mg tablet sig: one (1) tablet po once a day: take with one 100mg (total 400mg) daily. disp:*30 tablet(s)* refills:*1* 10. fludrocortisone 0.1 mg tablet sig: one (1) tablet po mwf (monday-wednesday-friday). disp:*12 tablet(s)* refills:*1* 11. metoprolol tartrate 50 mg tablet sig: one (1) tablet po bid (2 times a day). disp:*60 tablet(s)* refills:*1* 12. prednisone 20 mg tablet sig: one (1) tablet po every other day (every other day): please alternate with 15mg dose. disp:*15 tablet(s)* refills:*2* 13. prednisone 5 mg tablet sig: three (3) tablet po daily (daily): please alternate with 20mg dose. disp:*45 tablet(s)* refills:*1* 14. hydroxyurea 500 mg capsule sig: two (2) capsule po every other day (every other day): please alternate with 1500mg dose. disp:*30 capsule(s)* refills:*1* 15. hydroxyurea 500 mg capsule sig: three (3) capsule po every other day (every other day): please alternate with 1000mg dose. disp:*45 capsule(s)* refills:*1* 16. anagrelide 1 mg capsule sig: five (5) capsule po once a day. disp:*150 capsule(s)* refills:*1* 17. epoetin alfa 20,000 unit/ml solution sig: three (3) total 60,000 injection every thursday: sq, done by dr. (hematology). discharge disposition: home with service facility: homecare discharge diagnosis: aortic stenosis s/p aortic valve replacement hypertension polycythemia myelodysplastic syndrome discharge condition: good discharge instructions: take shower. wash incision with warm water and gentle soap. do not apply lotions, creams, ointments or powders to incision. do not take bath or swim until seen in office. do not drive for 1 month. do not lift greater than 10 pounds for 2 months. if you develop a fever more than 101.5 or notice chest/sternal drainage, 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 diagnoses: congestive heart failure, unspecified unspecified essential hypertension aortic valve disorders polycythemia vera 

Answer: The patient is high likely exposed to