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: allergies: patient recorded as having no known allergies to drugs attending: chief complaint: headache major surgical or invasive procedure: occipital creaniectomy, ventricular drain placement, mri, mra, cta history of present illness: pt is a 53 yo male w/ pmhx sig for hypercholesterolemia, anxiety, depression who is transferred from for cerebellar stroke. the patient was in his usoh, when on at ~ 2 am he woke with a left sided headache and throbbing pain behind the left eye. he then felt nauseated and upon standing up felt that the room was spinning. ems was called and the patient was brought to . on the ambulance ride he had one bout of emesis. mri scan was performed and showed a left pica infarct. the patient was placed on aspirin 325 mg and lipitor. later in the day the patient complained of worsened headache and was sent for ct scan that showed edema with midline shift. he was given 25 mg of iv mannitol. the patient's neurological exam remained stable but transfer was requested for patient to be monitored in a neuroicu bed. pt still complains of peri stent headache that is currently a . he denies numbness, weakness, visual changes, dysarthria, dysphagia, diplopia, fevers, chills, night sweats, bowel/bladder incontinence. lifts heavy weights (up to 175lbs) and was lifting heavy bags of leaves 24 hrs prior to event. past medical history: hypercholesterolemia, anxiety, depression social history: : works in it. lives with wife an children. no tobacco. occasional etoh. family history: father - mi in 70's physical exam: vitals: t 97.2; bp 160/78; p 80; rr 14; general: lying in bed nad heent: ncat, moist mucous membranes neck: supple, no carotid bruit pulmonary: cta b/l cardiac: regular rate and rhythm, with no m/r/g carotids: no blood flow murmur abdomen: soft, nontender, non distended, normal bowel sounds extremities: no c/c/e. neurological exam: mental status: a & o x3, relays coherent history. fluent speech with no paraphasic or phonemic errors. adequate comprehension. follows simple and multi-step commands. cranial nerves: i: not tested ii: perrl, 4-->2mm with light. vff. iii, iv, vi: eomi. no nystagmus. v, vii: facial sensation intact, facial strength viii: hearing intact b/l to finger rubbing. ix, x: palatal elevation symmetrical. : scm xii: tongue midline without fasciculations. motor: normal bulk. normal tone. no pronator drift. delt tri we wf fe ff ip qd ham df pf edb rt: 5 5 5 5 5 5 5 5 5 5 5 5 5 5 left: 5 5 5 5 5 5 5 5 5 5 5 5 5 5 sensation: intact to pinprick, light touch, vibration, and position sense. reflexes: bic t br pa ac right 2 2 2 3 2 left 2 2 2 3 2 toes downgoing bilaterally. coordination: left sided dysmetria. pertinent results: 05:59am pt-12.2 ptt-25.1 inr(pt)-1.0 05:59am plt count-210 05:59am wbc-15.6* rbc-4.30* hgb-14.6 hct-41.4 mcv-96 mch-34.1* mchc-35.4* rdw-12.7 05:59am triglycer-71 hdl chol-59 chol/hdl-2.7 ldl(calc)-88 05:59am %hba1c-5.5 -done -done mra head: dissection of left vertebral artery at c1 with diminished flow signal and diminished flow signal in the basilar artery. both posterior cerebral arteries are visualized and appear to be predominantly getting flow from the anterior circulation through posterior communicating arteries. no abnormalities in the anterior circulation. mra neck: : diminished flow signal within the left vertebral artery in its proximal cervical portion with evidence of dissection at the level of c1. right vertebral artery predominantly ends in posterior inferior cerebellar artery. normal carotid arteries in the neck. mri: brain : acute left cerebellar infarct with mass effect. other changes as described above. head ct on admission: there is a large area of cytotoxic edema, involving left cerebellar hemisphere, producing mild-to-moderate hydrocephalus, left to right shift of normally midline structures, as well as tonsillar herniation. there is no acute intracranial hemorrhage. head ct post-op: interval placement of a ventricular catheter with interval suboccipital craniectomy with post-operative pneumocephalus. new, small foci of hyperdense material present within the patient's left cerebellar infarct are consistent with acute blood products, presumably post-surgical. brief hospital course: neurologically: exam was stable on arrival with findings of mild left worse than right ataxia/dysmetria and impaired abduction bilaterally with left sided nystagmus on left lateral gaze. received one dose of mannitol en route and started on 50gm q6 morning of admission. ct from admission showed concern for mild/mod hydrocephalus and tonsilar herniation. as this was less than 48 hours out from symptom onset, there was great concnern for further edema and mass effect on brainstem structures as well as further development of hydrocephalus. was taken to the or urgently on day of admission for decompression by craniectomy and also evd(extraventricular drain) placement. no intraoperative complications. cta and mra of neck showed left vertebral artery dissection at level of c1 extending upwards (see report section for details). decision to start anticoagulation was made. patient received one does coumadin 5mg on evening of with anticipation of drain being pulled within 24 hrs. drain removal was postponed however, so anticoagulation was post-poned until drain discontinued. was covered prophyactically with cefazolin while drain in place. stayed in the neuro intensive care until with close monitoring of neurological exam and icp. was continued on dexamethasone for 3 days per neurosurgery request, and had vent drain clamped on am. follow up ct 12 hrs later showed some development of hydrocephalus and was discussed to keep drain clamped and follow up with second catscan later afternoon. exam remained stable. was treated prophylactically in icu with asa and lipitor 80, with plan to start anticoagulation after vent drain removal (at which time asa to be stopped). cardiovascular: was on telemetry with no events in icu. had echo which shoed ef 75% and had negative bubble study. had one negative set of cardiac enzymes from time of transfer. was managed with antihypertensives labetolol and verapamil as well as some as needed doses, in order to keep blood pressures within acceptable range. respiratory: no major issues endo: hba1c was 5.5. covered prophylactically with regular insulin sliding scale and q6hrs finger sticks. infectious: no infectious disease issues. treated prophylactically with cefazolin while drain in place. renal: no issues gi: no issues. received zantac for prophylaxis and tolerated regular diet. prophylaxis: heparin sc, zantac, pneumoboots. patient was cared for by dr. while inpatient. medications on admission: wellbutrin 300 mg q day, neurontin 600 mg (anxiety) discharge medications: 1. aspirin 81 mg tablet, chewable sig: one (1) tablet, chewable po daily (daily). 2. docusate sodium 100 mg capsule sig: one (1) capsule po bid (2 times a day). 3. atorvastatin 80 mg tablet sig: one (1) tablet po daily (daily). 4. gabapentin 300 mg capsule sig: two (2) capsule po bid (2 times a day). 5. heparin (porcine) 5,000 unit/ml solution sig: 5000 (5000) units injection tid (3 times a day). 6. senna 8.6 mg tablet sig: one (1) tablet po daily (daily). 7. acetaminophen 325 mg tablet sig: one (1) tablet po q4-6h (every 4 to 6 hours) as needed. 8. diazepam 5 mg tablet sig: one (1) tablet po q8 (). 9. famotidine 20 mg tablet sig: one (1) tablet po q12h (every 12 hours). 10. tramadol 50 mg tablet sig: one (1) tablet po q4-6h (every 4 to 6 hours) as needed for pain. 11. bisacodyl 5 mg tablet, delayed release (e.c.) sig: two (2) tablet, delayed release (e.c.) po daily (daily) as needed. 12. warfarin 5 mg tablet sig: one (1) tablet po hs (at bedtime). 13. labetalol 100 mg tablet sig: one (1) tablet po bid (2 times a day). 14. enalapril maleate 10 mg tablet sig: one (1) tablet po bid (2 times a day). 15. skelaxin 400 mg tablet sig: two (2) tablet po three times a day as needed for pain. discharge disposition: extended care facility: - discharge diagnosis: stroke (left cerebellum) high blood pressure high cholesterol discharge condition: neurologically stable discharge instructions: please take all medications as prescribed. keep all follow-up appointments. please return to the nearest ed if symptoms of weakness or numbness return. you are on a medication warfarin which requires a frequent inr checks by you primary care doctor. followup instructions: provider: , md, phd: date/time: 2:00 provider: , md phone: please schedule for within 2-3 weeks from discharge. md, procedure: other repair of cerebral meninges ventricular shunt to extracranial site nec tonsillectomy without adenoidectomy diagnoses: obstructive hydrocephalus pure hypercholesterolemia unspecified essential hypertension compression of brain cerebral artery occlusion, unspecified with cerebral infarction dissection of vertebral artery 

Answer: The patient is high likely exposed to