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: this is a 49 year-old male with a past medical history significant for coronary artery disease status post an obtuse marginal stent in the past, hyperlipidemia, gastroesophageal reflux disease, asthma, obesity with no history of tobacco or alcohol use or abuse. allergies: the patient has allergies to codeine. medications prior to admission: lipitor 10 mg po q.h.s., aspirin one tab q.d., prevacid 30 mg po q day, atenolol 100 mg po q.a.m., isordil 10 mg po t.i.d., univasc 15 mg po q.a.m. this is a 49 year-old male who was transferred to for cardiac catheterization after being admitted to hospital the day prior to admission, which was for chest pain and shortness of breath with electrocardiogram changes suggestive of ischemia. the patient has a history of cardiac catheterization in with stents placed to the left circumflex and obtuse marginal revealing left main to 20% and right coronary artery occlusion of 100% as well as left anterior descending coronary artery disease of 60%. the patient's chest pain was substernal nonradiating with no complaints of nausea, vomiting or diaphoresis. it occurred at rest as well as worsening with exertion. nitroglycerin with good relief. he was ruled out for anterior myocardial infarction by enzymes. the patient underwent cardiac catheterization on the day of his admission, which was , which revealed 50% left main coronary artery disease, 50% mid left anterior descending coronary artery disease, 90% disease of the left circumflex at the origin and 60% in stent restenosis of the left circumflex, 90% origin of obtuse marginal one and obtuse marginal two and the right coronary artery was not injected. it had a known total occlusion filling via the left coronary collaterals. the patient underwent coronary artery bypass grafting times three with a left internal mammary artery to the left anterior descending, saphenous vein graft to the diagonal and right radial artery to the obtuse marginal. the patient's total cardiopulmonary bypass time was 89 minutes and total cross clamp time 56 minutes. the patient was transferred to the cardiac surgery recovery unit in stable condition on nitroglycerin and propofol. the patient was extubated later on the day of surgery. postoperative day one the patient remained afebrile in sinus rhythm at 82 on nitro drip at one and insulin drip of three with a stable hematocrit and good urine output. physical examination unremarkable with the plan to discontinued the nitroglycerin and to begin imdur po and to fast track to the floor. postoperative day two at 2:00 in the morning the patient went into atrial fibrillation with a heart rate in the 150s, blood pressure 185/90, 5 mg of lopresor was administered times two as well as an amiodarone bolus of 150 mg. an additional 25 mg of lopressor po was needed to increase his daily dose to 50 mg po b.i.d. he was started on amiodarone 400 mg po t.i.d. with his heart rate coming down to the 90s and blood pressure 136/60 without further intervention. on postoperative day two later on that day the patient is without complaints aside from the episode of atrial fibrillation earlier. afebrile, vital signs are stable in sinus rhythm. plan to continue lopressor now at 50 mg po b.i.d. as well as amiodarone and to discontinue the chest tubes and foley catheter. postoperative day three the patient with no further episodes of atrial fibrillation over the last 24 hours without complaints with good pain control in sinus rhythm at 73 with low grade temperature of temperature max 99.6. physical examination remained unchanged with the plan to possibly discharge the patient to home the following day. postoperative day four the patient was without complaints overnight. aside from constipation for which the patient was administered colace without effect. the patient was discharged home with services. discharge medications: aspirin 325 mg po q day, atenolol 100 mg po q.d., lansoprazole 30 mg po q day, simvastatin 20 mg po q day, acetaminophen 650 mg po q 4 hours prn pain. percocet one to two tabs po q 4 to 6 hours prn pain, potassium chloride 20 milliequivalents po q day, isosorbide dinitrate 20 mg po t.i.d. discharge condition: the patient was discharged home in stable condition. discharge diagnosis: coronary artery disease status post coronary artery bypass grafting times three. , m.d. dictated by: medquist36 procedure: single internal mammary-coronary artery bypass extracorporeal circulation auxiliary to open heart surgery coronary arteriography using two catheters left heart cardiac catheterization (aorto)coronary bypass of one coronary artery other bypass anastomosis for heart revascularization diagnoses: coronary atherosclerosis of native coronary artery esophageal reflux pure hypercholesterolemia unspecified essential hypertension cardiac complications, not elsewhere classified atrial fibrillation asthma, unspecified type, unspecified other and unspecified angina pectoris other complications due to other cardiac device, implant, and graft 

Answer: The patient is high likely exposed to