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: mild headache x 5days major surgical or invasive procedure: left cranitomy with evacuation sdh history of present illness: hpi: 49yo m, with no significant pmh, who presented with minor () right frontal headache since wedensday, and slightly worse today. he went an osh, head ct there showed sdh, and pt was transfered to here. he did recall a bike accident 4 month ago when his head and right knee hit on a car. no loc. he had only minimal headache after the accident which completely resolved shortly after. denied recent fall, or recent nsaid/blood thinner usage. states slight right leg weakness since arrived at er. denied n/v, vision changes, numbness of limbs. past medical history: pmhx: none. all: nkda social history: social hx: nonsmoker, one drink/night. non drug user. family history: family hx: dm in both parents. physical exam: physical exam: o: t:98.0 bp:115/58 hr: 49 r 16 o2sats 100 gen: wd/wn, comfortable, nad. heent: pupils: perrla eoms full neck: supple. neuro: mental status: awake and alert, cooperative with exam, normal affect. orientation: oriented to person, place, and date. language: speech fluent with good comprehension. no dysarthria or paraphasic errors. cranial nerves: i: not tested ii: pupils equally round and reactive to light, 2.5 to 2.0 mm bilaterally. visual fields are full to confrontation. 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 bilaterally. dtr 1-2/4 bilateral and symmetrical. toes downgoing bilaterally coordination: normal on finger-nose-finger. pertinent results: ct/mri: left-sided extraxial high density collection likely combo of ? epidural and subdural with evidence of recent rebleeding into what was presumably a subacute collection. associated 9mm rightward shift of septum pellucidum labs: wbc 5.7 crit 42.0 plts 570 pt: 11.3 ptt: 28.2 inr: 1.0 brief hospital course: pt was admitted to the hospital and taken to or for left craniotomy for sdh under general anesthesia. he tolerated this procedure well and was transferred to pacu for close monitoring overnight. he was neurologically intact. dressing was clean and dry. on pod#! he was transferred to the floor. post op ct should good appearance. he remained flat but then was allowed oob on pod#3. his diet was advanced. he was ambulating in halls. foley was removed and he voided spontaneously. staples were clean and dry. medications on admission: hpi: 49yo m, with no significant pmh, who presented with minor () right frontal headache since wedensday, and slightly worse today. he went an osh, head ct there showed sdh, and pt was transfered to here. he did recall a bike accident 4 month ago when his head and right knee hit on a car. no loc. he had only minimal headache after the accident which completely resolved shortly after. denied recent fall, or recent nsaid/blood thinner usage. states slight right leg weakness since arrived at er. denied n/v, vision changes, numbness of limbs. pmhx: none. all: nkda medications prior to admission: occasionally tylenol for headache social hx: nonsmoker, one drink/night. non drug user. family hx: dm in both parents. physical exam: o: t:98.0 bp:115/58 hr: 49 r 16 o2sats 100 gen: wd/wn, comfortable, nad. heent: pupils: perrla eoms full neck: supple. neuro: mental status: awake and alert, cooperative with exam, normal affect. orientation: oriented to person, place, and date. language: speech fluent with good comprehension. no dysarthria or paraphasic errors. cranial nerves: i: not tested ii: pupils equally round and reactive to light, 2.5 to 2.0 mm bilaterally. visual fields are full to confrontation. 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 bilaterally. dtr 1-2/4 bilateral and symmetrical. toes downgoing bilaterally coordination: normal on finger-nose-finger. ct/mri: left-sided extraxial high density collection likely combo of ? epidural and subdural with evidence of recent rebleeding into what was presumably a subacute collection. associated 9mm rightward shift of septum pellucidum labs: wbc 5.7 crit 42.0 plts 570 pt: 11.3 ptt: 28.2 inr: 1.0 discharge medications: 1. phenytoin sodium extended 100 mg capsule sig: one (1) capsule po tid (3 times a day). disp:*90 capsule(s)* refills:*2* 2. oxycodone-acetaminophen 5-325 mg tablet sig: 1-2 tablets po q4-6h (every 4 to 6 hours) as needed. disp:*40 tablet(s)* refills:*0* 3. docusate sodium 100 mg capsule sig: one (1) capsule po bid (2 times a day). disp:*60 capsule(s)* refills:*0* discharge disposition: home discharge diagnosis: sdh discharge condition: neurologically stable discharge instructions: discharge instructions for craniotomy/head injury ?????? have a family member check your incision daily for signs of infection ?????? take your pain medicine as prescribed ?????? exercise should be limited to walking; no lifting, straining, excessive bending ?????? you may wash your hair only after staples have been removed ?????? you may shower before this time with assistance and use of a shower cap ?????? increase your intake of fluids and fiber as pain medicine (narcotics) can cause constipation ?????? unless directed by your doctor, do not take any anti-inflammatory medicines such as motrin, aspirin, advil, ibuprofen etc. ?????? if you have been prescribed an anti-seizure medicine, take it as prescribed and follow up with laboratory blood drawing as ordered ?????? clearance to drive and return to work will be addressed at your post-operative office visit call your surgeon immediately if you experience any of the following: ?????? new onset of tremors or seizures ?????? any confusion or change in mental status ?????? any numbness, tingling, weakness in your extremities ?????? pain or headache that is continually increasing or not relieved by pain medication ?????? any signs of infection at the wound site: redness, swelling, tenderness, drainage ?????? fever greater than or equal to 101?????? f followup instructions: please return to the office in days for removal of your staples please call to schedule an appointment with dr. procedure: incision of cerebral meninges other repair of cerebral meninges diagnoses: subdural hemorrhage 

Answer: The patient is high likely exposed to