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: the patient is a 75-year-old white male with a history of mitral valve disease who has been followed with echocardiograms. he notes increasing shortness of breath and dyspnea on exertion while off of his lasix. patient had a cardiac catheterization on which showed mitral valve disease and tricuspid valve disease followed by an echocardiogram on which showed the same. the patient was referred to dr. for a mitral valve repair. past medical history: 1. head of pancreas mass, question small cyst. 2. history of torn rotator cuff on the left, status post repair eight weeks prior to admission. 3. history of right lower lobe pneumonia. 4. post hepatic neuralgia, left occipital nerve. 5. basal cell carcinoma of his back, status post removal. 6. meningitis in the navy. medications: digoxin 0.5 mg po q.d., zestril 40 mg po q.d., glyburide 5 mg po q.d., neurontin 100 mg po t.i.d., lasix 20 mg po q.d., coumadin 7.5 mg po q.h.s. allergies: sulfa. physical examination: vital signs: blood pressure 156/69. pulse is 70. respiratory rate 20. in general, white male in no acute distress. skin is warm and dry. head, eyes, ears, nose and throat normal. no jugular venous distention. no bruits. chest is clear to auscultation bilaterally. heart regular rate and rhythm with 3/6 systolic ejection murmur. bowel sounds are present in the abdomen, soft, nontender, nondistended. extremities: no cyanosis, clubbing or edema. hospital course: the patient was admitted on and underwent a mitral valve repair with a #28 ring. the patient did well postoperatively and was transferred to the csru. patient was weaned off of his neodrip and extubated. on postoperative day number one, the patient was transferred to the floor and was seen by physical therapy who felt that after three to four more visits, he would be safe for discharge to home. on postoperative day number two, the patient's pacemaker was interrogated. after this was found to be working well, his chest tube was removed, as well as his foley catheter. on postoperative day number three, the patient continued to work with physical therapy. patient was started back on his coumadin and his inr on postoperative day number five was 1.6. as this was trending upwards, the patient was discharged to home on the following medications: discharge medications: 1. coumadin 7.5 mg po q.h.s. with a goal inr of .5. 2. aspirin 81 mg po q.d. 3. zestril 40 mg po q.d. 4. percocet 5/325 1 or 2 tablets po q. 4-6 hours prn. 5. colace 100 mg po b.i.d. 6. lasix 20 mg po b.i.d. times seven days. 7. kcl 20 meq po b.i.d. times seven days. 8. zantac 150 mg po b.i.d. 9. neurontin 100 mg po t.i.d. 10. digoxin 0.5 mg po q.d. 11. glyburide 5 mg po q.d. patient was to have his inr checked on and the results were to be called to dr. . telephone number . patient was to have physical therapy at home. discharge diagnosis: status post mitral valve repair. , e. m.d. dictated by: medquist36 d: 20:13 t: 20:13 job#: 1 1 1 dr procedure: extracorporeal circulation auxiliary to open heart surgery other esophagoscopy open heart valvuloplasty of mitral valve without replacement diagnoses: mitral valve disorders unspecified essential hypertension diabetes mellitus without mention of complication, type ii or unspecified type, not stated as uncontrolled atrial fibrillation cardiac pacemaker in situ 

Answer: The patient is high likely exposed to