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 68 year old male who has been known to have aortic regurgitation. the patient was followed by his personal cardiologist and was complaining of worsening shortness of breath at this time. the patient was diagnosed with worsening aortic dilation and was subsequently referred for cardiothoracic surgical intervention. past medical history: 1. hypertension. 2. placement of ddd pacemaker secondary to av block approximately three years ago. 3. patient denies neurologic, gastrointestinal or pulmonary problems. medications on admission: cozaar 100 mg p.o.q.d., atenolol 25 mg p.o.q.d., norvasc 10 mg p.o.q.d. allergies: the patient has no known drug allergies. social history: the patient quit smoking 35 years ago. physical examination: on physical examination, the patient presented with a pulse of 78 and blood pressure 157/66. general: well appearing 68 year old male in no acute distress. skin: intact, without lesions or abrasions. head, eyes, ears, nose and throat: normocephalic, atraumatic, unremarkable. neck: supple, nontender, without jugular venous distention or lymphadenopathy. chest: clear to auscultation bilaterally without wheezes or rhonchi appreciated. cardiovascular: normal s1 and s2, regular rate and rhythm, iv/vi systolic ejection murmur appreciated. abdomen: soft, nontender, nondistended, positive bowel sounds. extremities: warm and well perfused. neurologic: grossly intact. hospital course: the patient was taken to the operating room on and underwent a bentall procedure by dr. . the patient tolerated the procedure very well and was transferred to the cardiothoracic intensive care unit in stable condition. on the first postoperative day, the patient had quite labile blood pressures, requiring the use of a nipride drip in order to manage. the patient was extubated on postoperative day one without difficulty. his vital signs all appeared to be stable at this time. the patient was alert, oriented, following commands and attended to the examination. his lungs were clear to auscultation bilaterally with a regular heart rate. the patient's pacemaker seemed to be slightly misreading the patient's intrinsic rhythm, as noted on the telemetry monitor. the cardiology service was consulted and interrogated the patient's pacemaker. they reprogrammed the pacemaker to have a better sensing of the patient's heart beats. on postoperative day number two, the patient began expressing worsening changes in mental status. the patient became increasingly disoriented and confused. the patient required multiple doses of haldol in order to calm him. the patient also required four-point restraints at time to prevent the pulling out of lines. an infectious workup was negative at this time, with a maximum temperature of 98.5. a chest x-ray showed a large right sided pleural effusion, which required the placement of a #28 french chest tube to approximately 13 cm within the chest cavity. the patient tolerated the procedure well and spontaneously drained 450+ cc from the right chest cavity. the patient also had the onset of worsening respiratory secretions during this time, requiring aggressive pulmonary therapy and frequent suctioning. the patient underwent a bronchoscopy on , which showed minimal secretions deep within the bronchial system, but narrowing of the left main bronchus. washings were taken from the bronchi at this time. the patient required reintubation secondary to agitation and respiratory secretions. his pulmonary status was much easier to care for once put back onto the ventilator. the patient did, however, require large amounts of haldol, morphine and ativan for sedation during the next few days. multiple attempts were made to wean the patient off sedation, but his agitation would not allow this. gram stain from the patient's bronchial washings showed 1+ gram negative rods and 1+ gram positive cocci, and 4+ polymorphonuclear neutrophils. these organisms were not speciated as they were felt to be representative of commensurate respiratory pathogens. the patient was, however, started on intravenous levofloxacin in consultation with infectious disease, for prophylaxis of possible infected pleural effusion. it was, however, found on later cultures that the patient's urine/blood/sputum/bronchial washings were all culture negative. the patient was noted to have intermittent fevers over the following few days, with a maximum temperature of 101.2. the patient's mental status continued to wax and wane, with episodes of increasing alertness mixed with episodes of worsening disorientation. the patient's medications which were thought to be contributing to his mental status changes were discontinued. given the negative cultures, it was felt that the patient's mental status changes were most likely representative of intensive care unit psychosis. care continued until postoperative day number seven, when the patient's mental status began to show marked improvement. the patient was more awake, following commands and appeared to be much less agitated. it seemed that the combination of morphine and versed helped the patient improve more so than haldol had. the patient was transferred to the floor in stable condition on postoperative day number eight, having shown great improvement in his mental status, indicated by the ability to extubate. over his three days on the floor, the patient continued to show great improvement and was fully awake, alert and oriented times three. the patient was ambulating very well with physical therapy, taking a regular diet and voiding on his own. the patient was afebrile throughout this time, with a normal sinus rhythm of 80s to 90s and a blood pressure of 120s/70s. the patient was begun on coumadin anticoagulation and his inr achieved a level of 2.5 prior to discharge. on his last two admission days, the patient showed some sun-downing, in which he became more disoriented during the overnight hours, with difficulty in sleeping. the patient's lopressor was also increased to 75 mg twice a day for a mildly increased heart rate. it was felt at this point that the patient was stable from a medical and surgical standpoint to be discharged home. in addition, it was felt that he would do much better in his home environment. disposition: to home. condition on discharge: stable. discharge medications: in addition to preoperative medications, the patient is to take: aspirin 81 mg p.o.q.d. lopressor 75 mg p.o.b.i.d. coumadin 5 mg p.o.q.d. combivent. lasix 40 mg p.o.b.i.d. and potassium chloride 20 meq p.o.b.i.d. until patient reaches his preoperative weight. colace 100 mg p.o.b.i.d. captopril 25 mg p.o.q.d. amiodarone 400 mg p.o.q.d. levofloxacin 400 mg p.o.q.d., to be discontinued on . norvasc 10 mg p.o.q.d. percocet one to two tablets p.o.q.i.d. ativan p.r.n. discharge instructions: the patient is to take his medications as outlined above. the patient is to follow-up with his primary care physician for the management of his coumadin, to achieve an inr level of 2.5 to 3 for prophylaxis of his mechanical valve. the patient is to follow up with dr. of the cardiothoracic surgery service and is to call the office to establish a follow-up appointment in approximately two to three weeks. the patient is to have his staples removed at that time. , m.d. dictated by: medquist36 procedure: insertion of intercostal catheter for drainage continuous invasive mechanical ventilation for 96 consecutive hours or more extracorporeal circulation auxiliary to open heart surgery insertion of endotracheal tube open and other replacement of aortic valve resection of vessel with replacement, thoracic vessels closed [endoscopic] biopsy of bronchus diagnoses: unspecified pleural effusion unspecified essential hypertension thoracic aneurysm without mention of rupture aortic valve disorders cardiac pacemaker in situ 

Answer: The patient is high likely exposed to