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 78 year old gentleman with a past medical history significant for cerebrovascular accident, mechanical valve replacement and coronary artery bypass graft who was admitted to status post a subarachnoid hemorrhage. the patient developed headache two days prior to admission with worsening confusion, presented to an outside hospital where a head ct showed a subarachnoid hemorrhage centered around the left sylvian fissure. there was a question of a ruptured aneurysm. the patient was transferred to for further management. patient had a cerebrovascular accident in with aphasia and word finding difficulties as his only baseline residual. past medical history: also includes rheumatic heart disease, coronary artery bypass graft. allergies: no known allergies. physical examination: his blood pressure was 101/39, heart rate was 58, respiratory rate 15, saturations 98 percent. in general he was in no acute distress, calm. head, eyes, ears, nose and throat: his pupils are equal, round and reactive to light. neck was supple. cardiovascular: regular rate and rhythm. lungs clear to auscultation. abdomen soft, nontender, nondistended, positive bowel sounds. extremities: no clubbing, cyanosis or edema. neurologic: awake, alert and oriented times three with word finding difficulties, fluent aphasia. cranial nerves grossly intact. strength was 5 out 5 in all muscle groups. he was admitted to the intensive care unit for close neurologic observation. he was on coumadin for his mechanical valve on admission and his inr was 2.8 on admission. anticoagulation was stopped and reversed on admission. cardiology was consulted to assess the risk of leaving off anticoagulation versus mechanical valve thrombosis. it was felt the patient could be off anticoagulation for a week safely. the patient was taken to angio to rule out aneurysm which was negative. post angio he was awake, alert and oriented. his groin site was clean, dry and intact with no hematoma. he continued to be monitored in the intensive care unit. he did have a new onset of atrial fibrillation on with left bundle branch block. neurology was also consulted regarding when it was safe to restart coumadin. they felt the patient could be safely off for one to two weeks. the patient continued to be monitored in the intensive care unit and remained neurologically stable. patient had repeat head ct on . this showed increase in the left temporal lobe hemorrhage. therefore, all anticoagulation was held and the patient's inr was corrected to normal. the patient had a transesophageal echocardiography. transesophageal echocardiography was negative for any clots around his valves. neurology continued to follow the patient. on the patient was taken back for repeat angio to assess for possible aneurysm or vasospasm. the patient did have some left middle cerebral artery vasospasm which was treated with papaverine intra- arterially. there was no evidence of aneurysm. the patient continued to be intubated but opening his eyes, attending to examiner, squeezing well on the left, moving all extremities. he continued to have plegia in the right upper extremity, moving the left upper extremity spontaneously. his left side moved spontaneously. his right side at times moves to command and at other times does not. the patient had bedside swallowing evaluation which he failed and a peg was placed on . he has remained neurologically stable. he will follow up with dr. in two weeks with a repeat head ct. his medications at the time of discharge include dilantin 200 mg per peg b.i.d., famotidine 20 mg per peg b.i.d., metoprolol 50 per peg t.i.d., lasix 20 mg per peg daily, hydralazine 10 mg per peg q 6 hours, amlodipine 60 mg p.o. q 4 hours, pravastatin 20 mg per peg daily, levofloxacin 500 mg per peg q 24 hours, digoxin 0.125 mg daily, may be switched to p.o. daily. condition on discharge: stable at the time of discharge. follow up: with dr. in two weeks with a repeat head ct. , md dictated by: medquist36 d: 16:24:37 t: 17:18:10 job#: procedure: continuous invasive mechanical ventilation for less than 96 consecutive hours diagnostic ultrasound of heart insertion of endotracheal tube enteral infusion of concentrated nutritional substances percutaneous [endoscopic] gastrostomy [peg] arteriography of cerebral arteries esophagogastroduodenoscopy [egd] with closed biopsy transfusion of other serum diagnoses: pneumonia, organism unspecified atherosclerosis of aorta atrial fibrillation aortocoronary bypass status subarachnoid hemorrhage heart valve replaced by other means acute respiratory failure unspecified transient cerebral ischemia late effects of cerebrovascular disease, aphasia 

Answer: The patient is high likely exposed to