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: s/p assault major surgical or invasive procedure: : elevation of depressed skull fracture history of present illness: 22yo m presents s/p assault. he apparently was attacked by his girlfriends ex-boyfriend with a . she also states that he was attacked 2 days ago by his landlord's son and is the reason he has a black eye (left). mr is known to the neurosurgical department after sustaining a on when he flipped over the handlebars of his bicycle. he signed out of the hospital ama at that time but tonight he states that he has no recollection of that. his girlfriend states that he had a +loc for about 45sec then he came to. her and her friend put him in their car and brought him to . a ct there revealed a depressed skull fx so he was transferred to . the patient states that he has had continued h/a's, equilibrium problems and memory issues since his previous accident. he is no longer taking dilantin but he was taking oxycodone up until 2 days ago when it was "stolen". past medical history: sdh depression/anxiety social history: girlfriend and mother at bedside. unemployed. denies tobacco. previous drug use. family history: nc. physical exam: on admission: physical exam: o: t: 98.1 bp: 101/71 hr: 72 r 16 o2sats 100% 2 l nc gen: wd/wn, comfortable, nad. heent: pupils: perrl eoms intact neck: hard collar in place lungs: cta bilaterally. cardiac: rrr. s1/s2. abd: soft, nt, bs+ extrem: warm and well-perfused. neuro: mental status: awake and alert, cooperative with exam, normal affect. orientation: oriented to person, place, and date. language: speech fluent with good comprehension and repetition. naming intact. no dysarthria or paraphasic errors. cranial nerves: i: not tested ii: pupils equally round and reactive to light, 5 to 4 mm bilaterally. iii, iv, vi: extraocular movements intact bilaterally without nystagmus. v, vii: facial strength and sensation intact and symmetric. viii: hearing intact to voice. ix, x: palatal elevation symmetrical. : sternocleidomastoid and trapezius normal bilaterally. xii: tongue midline without fasciculations. motor: normal bulk and tone bilaterally. no abnormal movements, tremors. strength full power throughout. no pronator drift sensation: intact to light touch physical exam upon discharge: nf incision c/d/i pertinent results: head ct : depressed comminuted right frontoparietal-temporal bone fracture with underlying stable sah, but increased extraaxial hemorrhage (likely sdh, though given location developing edh also a possibility) now 10mm comp to 4 mm. no shift of mls. stable effacement of anterior r lateral ventricle and quadrigeminal cistern. slightly increased effacement of adjacent sulci and ccipital of r lateral ventricle. likely l temporal sdh measuring 4 mm c-spine mri: impression: 1. no evidence of fracture or ligamentous injury. brief hospital course: 22m s/p assault with a depressed skull fracture and underlying sah/sdh. he was admitted to the icu for monitoring. his exam remained nonfocal. he was bolused with dilantin and started on antibiotics. on am he went to the or for elevation and reconstruction of his fracture. surgery was without complication and he tolerated it well. he returned to the icu for neurological monitoring post op. post op head ct revealed no new hemorrhage and good elevation of the fracture. on he was cleared for transfer to the floor. his diet was advanced and pt/ot were consulted for assistance with discharge planning. on he was cleared from his cervical collar. his neuro exam was stable and he was cleared for discharge home. medications on admission: oxycodone citalopram discharge medications: 1. oxycodone 5 mg tablet sig: 1-3 tablets po q6h (every 6 hours) as needed for pain. disp:*60 tablet(s)* refills:*0* 2. phenytoin sodium extended 100 mg capsule sig: one (1) capsule po tid (3 times a day). disp:*90 capsule(s)* refills:*2* 3. citalopram 20 mg tablet sig: two (2) tablet po daily (daily). 4. docusate sodium 100 mg capsule sig: one (1) capsule po bid (2 times a day). 5. acetaminophen 325 mg tablet sig: 1-2 tablets po q6h (every 6 hours) as needed for pain, t>38.5. 6. cephalexin 500 mg capsule sig: one (1) capsule po q6h (every 6 hours) for 5 days. disp:*20 capsule(s)* refills:*0* discharge disposition: home discharge diagnosis: depressed skull fracture r sdh l sdh sah (traumatic) discharge condition: mental status: clear and coherent. level of consciousness: alert and interactive. activity status: ambulatory - independent. discharge instructions: general instructions ?????? take your pain medicine as prescribed. ?????? exercise should be limited to walking; no lifting, straining, or excessive bending. ?????? 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. ?????? unless directed by your doctor, do not take any anti-inflammatory medicines such as motrin, aspirin, advil, or ibuprofen etc. ?????? you have been prescribed dilantin (phenytoin) for anti-seizure medicine, take it as prescribed and follow up with laboratory blood drawing in one week. this can be drawn at your pcp??????s office, but please have the results faxed to . followup instructions: ??????please return to the office in days(from your date of surgery) for removal of your staples/sutures and/or a wound check. this appointment can be made with the nurse practitioner. please make this appointment by calling . if you live quite a distance from our office, please make arrangements for the same, with your pcp. ?????? please follow-up with dr in 4 weeks with a head ct without contrast. please call to make this appointment. ?????? we recommend you see dr in the traumatic brain injury (tbi) clinic the phone number is . if you have any problems booking this appointment please ask for . this appointment should be made within 1 week from discharge. procedure: incision of cerebral meninges bone graft to skull elevation of skull fracture fragments diagnoses: dysthymic disorder assault by striking by blunt or thrown object home accidents closed fracture of base of skull with subarachnoid, subdural, and extradural hemorrhage, with brief [less than one hour] loss of consciousness other conditions of brain other and unspecified cerebral laceration and contusion, without mention of open intracranial wound, with brief [less than one hour] loss of consciousness closed fracture of vault of skull with subarachnoid, subdural, and extradural hemorrhage, with brief [less than one hour] loss of consciousness 

Answer: The patient is high likely exposed to