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 52-year-old gentleman with complaints of headache on and off since friday before admission. on friday before admission the patient had a severe headache which resolved on its own. it recurred on sunday and monday. the patient had a head ct at that time which was negative. tuesday night he complained of severe headache while climbing the stairs, went back to the hospital, had an lp which showed in tube #4, red cells were , white cells were 1.1, red cells in tube #1 were 339, protein was 25, glucose 69. the patient was found to be severely hypertensive and diaphoretic with systolic blood pressure over 220. the patient was transferred to for further management. hospital course: he was monitored in the surgical intensive care unit. he had a ct of his brain which was negative. he went for an arteriogram. on the patient had an arteriogram which was negative for any evidence of aneurysm or av malformation. the patient had an mri of his c spine which was also negative and patient was transferred to the regular floor where he was stable neurologically with just complaints of headache. he was treated with pain medication. his headache slowly resolved. he was awake, alert, oriented times three, moving all extremities strongly. denies dizziness, visual changes, numbness or tingling or weakness. the patient was discharged to home on neurologically stable with follow-up with dr. in weeks time. discharge medications: percocet 1-2 tabs po q 6 hours prn pain intermittently with fioricet 1-2 tabs po q 6 hours prn. the patient will follow-up with dr. in 6 weeks time for repeat angio. the patient was in stable condition at the time of discharge. , m.d. dictated by: medquist36 procedure: arteriography of cerebral arteries diagnoses: unspecified essential hypertension headache cervicalgia nonspecific abnormal findings in cerebrospinal fluid 

Answer: The patient is high likely exposed to