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: no known allergies / adverse drug reactions attending: chief complaint: fall down stairs major surgical or invasive procedure: none history of present illness: 35 y/o m found down at base of stairs. patient was unresponsive at scene. was intubated and became combative,received morphine and was sedated. head ct revealed sah and occipital skull fractures at osh. patient was transferred to for further evaluation. on arrival patient was intubated and placed on propofol. past medical history: unknown social history: unknown family history: nc physical exam: physical exam: gen: intubated and on propofol heent: atraumatic, normocephalic pupils: 3 minimally reactive bilaterally no eo no commands bilateral weak corneals, + cough, +gag rue localization to noxious lue flexion to noxious ble w/d to noxious no otorrhea or rhinorrhea upon discharge: oriented x3, , pertinent results: ct head: bifrontal sah, l iph. no midline shift or effacement of ventricles. r occipital fracture minimally displaced. ct c-spine: negative for malalignment or fracture labs:tox screen negative na 148 k 4.7 cl 104 10:45pm urine color-straw appear-clear sp -1.009 10:45pm urine blood-neg nitrite-neg protein-neg glucose-neg ketone-neg bilirubin-neg urobilngn-neg ph-5.0 leuk-neg 10:45pm pt-13.2 ptt-27.0 inr(pt)-1.1 10:45pm wbc-22.8* rbc-5.28 hgb-17.0 hct-49.6 mcv-94 mch-32.3* mchc-34.3 rdw-12.6 10:45pm plt count-360 brief hospital course: pt was admitted and monitored closely in ticu. he had repeat head ct that was stable. he was extubated and remained intact. he was transferred to the floor. diet and activity were advanced. he was evaluated by pt and ot and was cleared to go home with his family. he was discharged on . medications on admission: unknown discharge medications: 1. acetaminophen 500 mg tablet sig: 1-2 tablets po q6h (every 6 hours) as needed for pain,fever. 2. docusate sodium 100 mg capsule sig: one (1) capsule po bid (2 times a day). 3. phenytoin sodium extended 100 mg capsule sig: one (1) capsule po tid (3 times a day) for 7 days. disp:*21 capsule(s)* refills:*0* discharge disposition: home discharge diagnosis: bifrontal subarachnoid hemorrhage, right occipital fracture and hematoma discharge condition: mental status: confused - sometimes. level of consciousness: alert and interactive. activity status: ambulatory - independent. discharge instructions: ?????? take your medicine as prescribed. ?????? exercise should be limited to walking; no lifting, straining, or excessive bending for 2 weeks then increase as tolerated. ?????? increase your intake of fluids and fiber, as narcotic pain medicine can cause constipation. we generally recommend taking an over the counter stool softener, such as docusate (colace) while taking narcotic pain medication. ?????? do not take any anti-inflammatory medicines such as motrin, aspirin, advil, or ibuprofen etc. until seen in follow up. ?????? you have been prescribed dilantin (phenytoin) for anti-seizure medicine, take it as prescribed until prescription is finished. followup instructions: follow up with dr in 4 weeks with head ct - please call to schedule. - we recommend that you follow-up with dr. in cognitive neurology because of your memory issues after your brain injury. procedure: continuous invasive mechanical ventilation for less than 96 consecutive hours arterial catheterization diagnoses: accidental fall on or from other stairs or steps closed fracture of base of skull with subarachnoid, subdural, and extradural hemorrhage, unspecified state of consciousness 

Answer: The patient is high likely exposed to