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 76 year old female with a history of aortic stenosis and hypertension, who presents with a two to three day history of fatigue and malaise. she denies chest pain, shortness of breath, syncope or near syncope. the patient was in her usual state of health until four days prior to this initial presentation, when she was noticing increased fatigue and orthostatic symptoms. the patient was recently seen by her primary care physician, one week ago, and was told that she was find. the patient was evaluated by an electrocardiogram in the emergency room and was found to be in complete heart block with a ventricular rate of 20 to 30 beats per minute. the patient's blood pressure at this time was 140/60 and stable. she denied chest pain, shortness of breath, orthopnea, paroxysmal nocturnal dyspnea, lower extremity edema, fever or chills. she also denied any medication changes or overdoses, or any new medications. the patient denies any history of syncope or heart block in the past. the patient also denies any cough or dysuria. physical examination: on physical examination, the patient had a blood pressure of 138/60, respiratory rate 20 to 30, oxygen saturation 99% in room air, and she was afebrile. neck: decreased carotid upstroke bilaterally. chest: clear to auscultation bilaterally. cardiovascular: bradycardia with normal s1 and s2, grade iv/vi systolic murmur. abdomen: soft, nontender, nondistended. extremities: without cyanosis, clubbing or edema. past medical history: 1. hypertension. 2. history of lung cancer in , status post left pneumonectomy. 3. history of aortic stenosis with last echocardiogram showing a valvular surface area of 0.7 cm2. 4. history of breast cancer, blood pressure bilateral mastectomies. social history: the patient has no history of tobacco or alcohol. allergies: morphine sulfate. medications on admission: atenolol 12.5 mg p.o.q.d., candesartan 4 mg p.o.q.d., prevacid, calcium 1 gm p.o.q.d. laboratory data: admission white blood cell count was 9.2, hemoglobin 11.8, platelet count 128,000, sodium 135, potassium 5.8, slightly hemolyzed, chloride 98, bicarbonate 25, bun 45, creatinine 1.3 up from 0.5, ck and troponin negative, prothrombin time 12.7, inr 1.1 and partial thromboplastin time 28.5. electrocardiogram revealed complete heart block with ventricular rate of 20 to 30, right bundle branch block with elevated t wave. hospital course: the patient had a temporary wire placed per the electrophysiology team upon presentation. on , the patient had a ddd pacemaker implanted without incident. the patient's post procedure course was uncomplicated and she remained stable, without any evidence of arrhythmia, chest discomfort or shortness of breath. disposition: the patient was discharged on in stable condition. discharge medications: same as admission medications. discharge instructions: 1. the patient is to follow up in the pacemaker clinic one week after discharge. 2. the patient is to follow up with dr. in one to two weeks after discharge. 3. the patient was discharged to a rehabilitation facility. discharge diagnoses: complete heart block, status post pacemaker placement. severe aortic stenosis. , m.d. dictated by: medquist36 procedure: catheter based invasive electrophysiologic testing initial insertion of dual-chamber device initial insertion of transvenous leads [electrodes] into atrium and ventricle insertion of temporary transvenous pacemaker system diagnoses: unspecified essential hypertension personal history of malignant neoplasm of bronchus and lung personal history of malignant neoplasm of breast atrioventricular block, complete mitral valve insufficiency and aortic valve stenosis neurogenic bladder nos other bilateral bundle branch block 

Answer: The patient is high likely exposed to