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: the patient is a 31-year-old construction worker who was hit by a brick on the forehead that had fallen 30 feet. the patient then fell 10 feet with unknown loss of consciousness and awoke combative with progressive mental status changes. he was intubated in the field by ems and transported to the emergency room. past medical history: unknown. allergies: unknown. medications: unknown. physical examination: initial examination was limited. his blood pressure was 130/76, heart rate 58, respiratory rate 22, saturations 100%, initially seen while intubated and sedated. pupils were 3 mm. he had a swollen, ecchymotic left eye and orbit, 3 x 3 x 1 cm raised left central forehead edema, nonpurposeful movement x 4 in the extremities. laboratory data: sodium 136, potassium 3.5, chloride 101, white count 7.1, hematocrit 39.5, platelet count 186, 12.3, 20.7 and 1.0 were his coagulation studies. ct scan showed a small left frontal intraparenchymal hemorrhage, frontal fracture through the frontal sinus, ? of air bubbles and pneumocephalus in the inferior left frontal region. hospital course: on reexamination the patient awakened, responded to name, followed simple commands, moved all four extremities, showed two fingers. the patient was extubated, conversant with fluent speech, complained of a headache, moving all extremities. the patient was admitted to the trauma surgical intensive care unit. the patient had a repeat head ct which was stable. the patient was then transferred to the regular floor. he developed leakage of cerebrospinal fluid and therefore a lumbar drain was placed without complication. the patient remained with a lumbar drain in place. the drain was in place until . the patient's drain was clamped on the morning of the 19th and there was no leaking. the drain was discontinued and the patient was discharged to home on the 19th. discharge medications: 1. percocet 1-2 tablets p.o. q. 4-6 hours p.r.n. 2. colace 100 mg p.o. b.i.d. 3. artificial tears 1-2 drops ou q.i.d. condition on discharge: stable. follow up: he will follow up with dr. in one to two weeks' time. , m.d. dictated by: medquist36 procedure: continuous invasive mechanical ventilation for less than 96 consecutive hours insertion of catheter into spinal canal for infusion of therapeutic or palliative substances systemic to pulmonary artery shunt diagnoses: other and unspecified intracranial hemorrhage following injury without mention of open intracranial wound, unspecified state of consciousness struck accidentally by falling object closed fracture of other facial bones 

Answer: The patient is high likely exposed to