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: mr. is a -year-old right handed male with no significant medical history who was found on the floor in his home by his wife, around thirty minutes after she had last seen him. emts were called who noted decreased responsiveness and garbled speech, and a left sided weakness. he was brought to the - . an imaging scan was performed which showed an acute right middle cerebral infarct. he was treated with tpa and admitted to the intensive care unit. on examination, he was found to be lethargic, following simple commands, oriented, but not attentive. he had a right gaze preference, but was able to cross the midline. he had a left flaccid hemiparesis as well as decreased response to left visual threat. sensory examination was intact. mr. remained stable and the superior branch of the right middle cerebral artery was seen on repeat perfusion scanning to the patient. he was transferred to the general neurology floor on . there he was found to have a large left subgaleal hematoma as well as left arm hematoma. his chest sounds were clear, heart sounds regular. abdomen: soft. extremities without edema. he again, had a right gaze preference, a left field cut, and his strength on the left was improved. there was a decreased left nasolabial fold, increased tone throughout. left upper greater than lower extremity weakness. sensory examination was intact to all modalities. coordination was intact. a repeat head ct scan showed an evolving right mca infarct, but no significant mass effect. mr. remained stable. physical therapy was started and he was screened for rehabilitation. an echocardiogram was obtained which showed an ejection fraction of 50% to 55%, moderate dilatation of the left atrium, mild dilatation of the right atrium, and a septal atrial defect. there is moderate symmetric left ventricular hypertrophy and normal right ventricular systolic function. aortic root is mildly dilated and there were focal calcifications in the aortic root. there is +1 mitral regurgitation, +3 tricuspid regurgitation, and moderate pulmonary artery systolic hypertension. initially, mr. was placed on heparin; however, his hematocrit fell precipitously due to bleeding from his hematoma. the heparin was stopped and several days later, coumadin as well as lovenox were started for prophylactic anticoagulation. past medical history: benign prostatic hypertrophy. admitting medications: none. allergies: none known. social history: lives independently with wife, taking care of all activities of daily living for himself and finances for his wife, leading an active life. distant tobacco use, occasional alcohol use. family history: not known. physical examination: temperature 98 f, blood pressure 150/90, pulse 61, respirations 20, 95% oxygen saturation on room air. general examination is notable for a slim, frail, elderly man with decreased breath sounds at bases; otherwise clear to auscultation. heart sounds regular, ii/vi systolic ejection murmur radiating toward axilla. abdomen: soft, nontender. extremities: no edema. on neurologic examination, he is sleepy, but oriented. his speech is fluent, his comprehension intact, as is his repetition. he can perform simple calculations and commands. he is at times perseverative. cranial nerve examination: he has a right gaze preference, but crosses the midline easily. his eye movements are full, except for decreased upward gaze. there is no nystagmus, there is a left decreased nasolabial fold. otherwise his facial movements and sensation are intact. there is left hemiparesis with left deltoid 3+/5, triceps , biceps , wrist extensor , finger flexor , iliopsoas 4+/5, quadriceps , hamstrings 4+/5, anterior tibialis , gastrocnemius . strength on the right to except for mild weakness in the right finger extensors 4+/5. tone is generally increased, refluxes are +3 on the left upper and lower extremities with upgoing plantar response on the left, posterior reflexes on the right with downgoing plantar response on the right. coordination with finger-to-nose is about ataxia. laboratory data: white count on 9.4, hematocrit 31.1, mcv 91, platelets 203,000. pt 14.4, inr 1.4. sodium 142, potassium 3.8, chloride 109, bicarbonate 20, bun 15, creatinine 0.3, glucose 129. calcium 7.7, phosphate 2.9, magnesium 1.7. hospital course: initially when mr. hematocrit dropped significantly. he had a ct scan of his abdomen and pelvis which showed no hematoma. he was also transfused two units of packed red blood cells to improve his hematocrit which he tolerated well. his hematocrit had initially dropped to 29.5 from 42.3 on admission. discharge medications: lisinopril 10 mg po q day, uro-mag 280 mg po tid, lovenox 50 mg subcutaneous q twelve hours until inr is therapeutic, coumadin 2.0 mg po q hs, zantac 150 mg po bid. disposition: mr. was discharged to rehabilitation. he is to have follow up with his primary care physician and with the clinic with dr. within two months after discharge. discharge condition: stable. discharge diagnosis: stroke. , m.d. dictated by: medquist36 procedure: venous catheterization, not elsewhere classified injection or infusion of thrombolytic agent diagnoses: hemiplegia, unspecified, affecting unspecified side occlusion and stenosis of carotid artery with cerebral infarction 

Answer: The patient is high likely exposed to