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: chief complaint/history of present illness: mr. is a 72 year old man who underwent coronary artery bypass grafting times three as well as maze procedure on , with an unremarkable postoperative course. he was discharged to rehabilitation on on amiodarone and coumadin for his atrial fibrillation. he presented to the emergency room on , with bloody drainage from the lower aspect of his sternal wound. the drainage began suddenly on the day of assessment following a coughing episode. it was not associated with any chest pain or increasing shortness of breath. the patient also denies fevers, chills and redness about the wound. he was transferred from the emergency room at hospital to far 2 at . a chest x-ray showed misaligned sternal layers in the inferior sternum with no infiltrates. past medical history: significant for coronary artery disease, status post coronary artery bypass grafting times three with left internal mammary artery to the left anterior descending coronary artery, saphenous vein graft to the posterior descending coronary artery and saphenous vein graft to the obtuse marginal, paroxysmal atrial fibrillation/flutter, status post maze procedure done during coronary artery bypass grafting, hypercholesterolemia, noninsulin dependent diabetes mellitus, history of urosepsis, history of colon carcinoma, hypertension, degenerative joint disease, abdominal aortic aneurysm, bilateral cataract surgery, colon resection and bilateral total knee replacement. social history: the patient lives alone, remote tobacco history, quit 18 years ago and alcohol use is limited to one drink per day. family history: father died of prostate cancer, otherwise insignificant. allergies: the patient states no known drug allergies. medications on admission: aspirin 81 once daily, lasix 20 b.i.d., colace 100 b.i.d., potassium chloride 20 b.i.d., percocet prn, glipizide 2.5 once daily, amiodarone 400 b.i.d., lipitor 40 once daily, lopressor 50 b.i.d. and coumadin 7.5 once daily. physical examination: temperature 98.9, heart rate 67, blood pressure 138/62, respiratory rate 24, oxygen saturation 94 percent on 3 liters. neurologically alert and oriented times three on focal examination. cardiovascular, irregular rhythm with no murmur, rubs or gallops and no jugular venous distension. respiratory, coarse breath sounds, decreased at the bases, sternal wound with serosanguinous drainage, no surrounding erythema, fluctuance or tenderness. abdomen is soft, nontender, nondistended with normoactive bowel sounds. dictation ended , procedure: venous catheterization, not elsewhere classified other repair of chest wall local excision of lesion or tissue of bone, scapula, clavicle, and thorax [ribs and sternum] transfusion of packed cells injection or infusion of oxazolidinone class of antibiotics diagnoses: pure hypercholesterolemia other postoperative infection congestive heart failure, unspecified unspecified essential hypertension diabetes mellitus without mention of complication, type ii or unspecified type, not stated as uncontrolled atrial fibrillation disruption of internal operation (surgical) wound aortocoronary bypass status surgical operation with anastomosis, bypass, or graft, with natural or artificial tissues used as implant causing abnormal patient reaction, or later complication, without mention of misadventure at time of operation infection with microorganisms without mention of resistance to multiple drugs old myocardial infarction personal history of malignant neoplasm of large intestine streptococcus infection in conditions classified elsewhere and of unspecified site, streptococcus, group d [enterococcus] staphylococcus infection in conditions classified elsewhere and of unspecified site, other staphylococcus osteoarthrosis, unspecified whether generalized or localized, lower leg 

Answer: The patient is high likely exposed to