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: erythromycin base attending: chief complaint: shortness of breath major surgical or invasive procedure: aortic valve replacement, 21-mm st. medical biocor epic tissue valve history of present illness: 80 year old female no to our serveice see previous h&p) with chief complaint of shortness of breath and hospitalization for congestive heart failure. underwent cardiac cath during this hospitalization which revealed severe aortic stenosis. patient states aortic stenosis was initially found on echo 3 years ago and has had multiple admissions of the last several years for heart failure. present this morning to undergo aortic valve replacement with possible mitral valve repair. past medical history: aortic stenosis s/p aortic valve replacement past medical history: mitral regurgitation congestive heart failure paroxysmal atrial fibrillation hypertension benign tremor bilateral knee replacements ?repair of right femur fracture right elbow surgery multiple foot operations social history: race: caucasian last dental exam: full dentures lives with: husband occupation: retired tobacco: quit 35 years ago etoh: never family history: mother died of mi at age 69 physical exam: pulse: 65 resp: 20 o2 sat: 96% b/p right: 109/53 left: 101/52 height: 5'4" weight: 140 lb general: well-developed elderly female in no acute distress sitting in wheelchair (normally uses walker) skin: dry intact heent: perrla eomi neck: supple full rom chest: -basilar rales heart: rrr irregular murmur 2/6 systolic abdomen: soft non-distended non-tender bowel sounds + extremities: warm , well-perfused edema: 2+ varicosities:none small area of erythema left lower extremity. healed scars from surgery bilaterally and right lower extremity round scar neuro: grossly intact pulses: femoral right: 2+ left: 2+ dp right: - left: - pt : 1+ left: 1+ radial right: 2+ left: 2+ carotid bruit right: trans left: trans pertinent results: echo: regional left ventricular wall motion is normal. right ventricular chamber size and free wall motion are normal. there are simple atheroma in the aortic root. there are simple atheroma in the ascending aorta. there are simple atheroma in the aortic arch. the aortic valve leaflets are severely thickened/deformed. there is critical aortic valve stenosis (valve area <0.8cm2). the mitral valve leaflets are moderately thickened. mild to moderate (+) mitral regurgitation is seen. post: patient is on a neosynephrine drip. 21 has been placed in the aortic position. well seated valve with no paravalvular regurgitation,mean gradient of 8 with a max gradient of 12. mitral regurgitation is now mild. lv function is preserved. no dissection flaps observed. admission: 07:55am hgb-11.6* calchct-35 07:55am glucose-80 lactate-0.9 na+-138 k+-3.7 cl--103 10:46am fibrinoge-143* 10:46am pt-16.6* ptt-91.3* inr(pt)-1.5* 10:46am plt count-136* 10:46am wbc-8.0 rbc-2.30*# hgb-6.9*# hct-20.9*# mcv-91 mch-29.8 mchc-32.8 rdw-14.5 12:21pm urea n-13 creat-0.7 sodium-142 potassium-4.1 chloride-110* total co2-24 anion gap-12 discharge 04:45am blood wbc-5.7 rbc-2.92* hgb-9.0* hct-26.7* mcv-91 mch-30.8 mchc-33.7 rdw-14.9 plt ct-96* 04:45am blood plt ct-96* 12:21pm blood pt-16.1* ptt-37.8* inr(pt)-1.4* 04:45am blood glucose-74 urean-17 creat-0.8 na-140 k-3.9 cl-103 hco3-32 angap-9 12:00am blood heparin dependent antibodies- negative for heparin pf4 antibody test by , f 80 radiology report chest (pa & lat) study date of 11:53 am chest (pa & lat) clip # medical condition: 80 year old woman with avr- imaging lab 01:17pm urine blood-sm nitrite-neg protein-neg glucose-neg ketone-neg bilirub-neg urobiln-neg ph-7.5 leuks-lg 01:17pm urine rbc-18* wbc-391* bacteri-many yeast-few epi-0 11:17am urine blood-neg nitrite-neg protein-neg glucose-neg ketone-neg bilirub-neg urobiln-4* ph-5.0 leuks-neg brief hospital course: mrs. was a same day admit after undergoing all pre-operative work-up as an outpatient. on she was brought to the operating room where she underwent an aortic valve replacement. please see operative report for surgical details. in summary she had: aortic valve replacement, 21-mm st. medical biocor epic tissue valve. her bypass time was 71minutes with a crossclamp of 56 minutes. she tolerated the operation well and following surgery she was transferred to the cvicu for invasive monitoring in stable condition. within 24 hours she was weaned from sedation, awoke neurologically intact and extubated. on post-op day one beta-blockers and diuretics were started and she diuresed towards her pre-op weight. ampicillin was started for a positive urinalysis. it was discontinued when the culture revealed no growth, and follow up urinalysis was negative. also on this day she was transferred to the telemetry floor for further care. chest tubes and epicardial pacing wires were removed per cardiac surgery protocol. she progressed well during post-op period and worked with physical therapy for strength and mobility. the remainder of her hospital course was uneventful. on post-op day 5 she appeared suitable for discharge to rehab. appropriate medications and arrangements for follow-up appointments were made. medications on admission: celexa 10mg daily amiodarone 200mg daily lisinopril 5mg daily carvedilol3.125mg daily lasix 40mg daily centrum/vitamin d daily discharge medications: 1. aspirin 81 mg tablet, delayed release (e.c.) sig: one (1) tablet, delayed release (e.c.) po daily (daily). 2. ranitidine hcl 150 mg tablet sig: one (1) tablet po once a day. 3. docusate sodium 100 mg capsule sig: one (1) capsule po bid (2 times a day). 4. citalopram 20 mg tablet sig: 0.5 tablet po daily (daily). 5. amiodarone 200 mg tablet sig: one (1) tablet po daily (daily). 6. cholecalciferol (vitamin d3) 400 unit tablet sig: one (1) tablet po daily (daily). 7. oxycodone-acetaminophen 5-325 mg tablet sig: 1-2 tablets po every 4-6 hours as needed for pain. 8. magnesium hydroxide 400 mg/5 ml suspension sig: thirty (30) ml po hs (at bedtime) as needed for constipation. 9. acetaminophen 325 mg tablet sig: two (2) tablet po q4h (every 4 hours) as needed for fever, pain. 10. bisacodyl 10 mg suppository sig: one (1) suppository rectal daily (daily) as needed for constipation. 11. potassium chloride 20 meq tab sust.rel. particle/crystal sig: one (1) tab sust.rel. particle/crystal po q12h (every 12 hours). 12. carvedilol 3.125 mg tablet sig: one (1) tablet po daily (daily). 13. insulin regular human 100 unit/ml solution sig: sliding scale units injection qac&hs. 14. lasix 40 mg tablet sig: one (1) tablet po twice a day. 15. lisinopril 2.5 mg tablet sig: one (1) tablet po once a day. tablet(s) discharge disposition: extended care facility: lifecare discharge diagnosis: aortic stenosis s/p aortic valve replacement past medical history: mitral regurgitation congestive heart failure paroxysmal atrial fibrillation hypertension benign tremor bilateral knee replacements ?repair of right femur fracture right elbow surgery multiple foot operations discharge condition: alert and oriented x3 nonfocal ambulating with steady gait incisional pain managed with percocet incisions: sternal - healing well, no erythema or drainage pedal edema- 2+ bilaterally 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 until follow up with surgeon no lifting more than 10 pounds for 10 weeks please call with any questions or concerns females: please wear bra to reduce pulling on incision, avoid rubbing on lower edge **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 appointments surgeon: dr. on at 1:30pm please call to schedule appointments with your primary care dr. in weeks cardiologist 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 diagnoses: thrombocytopenia, unspecified mitral valve disorders urinary tract infection, site not specified congestive heart failure, unspecified unspecified essential hypertension atrial fibrillation aortic valve disorders other chronic pulmonary heart diseases personal history of tobacco use knee joint replacement essential and other specified forms of tremor 

Answer: The patient is high likely exposed to