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: cc: major surgical or invasive procedure: cerebral angiogram x 2 history of present illness: hpi: 57 y/o male in previously good health who was walking outside his house when he noted a sudden, severe headache unlike other headaches he had ever experienced. he described the experience as characterized by severe pressure in his head which also began to cause posterior neck pain. he was unable to flex or extend his neck without pain. he also noted feeling of nausea, but this was mild. he was taken to an outside hospital where ct of head revealed subarachnoid hemorrhage. he was transferred to er for neurosurgery eval. past medical history: pmhx: sleep apnea gum infection social history: social hx: denies tobacco or ivdu, moderate etoh use family history: family hx:noncontributory physical exam: on arrival physical exam: gen: wd/wn, comfortable, nad. heent: pupils: bilaterally eoms intact neck: supple. 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. recall: objects at 5 minutes. 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, to 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, propioception, pinprick and vibration bilaterally. toes downgoing bilaterally coordination: normal on finger-nose-finger, rapid alternating movements, heel to shin pertinent results: ct head: again seen is extensive subarachnoid hemorrhage involving the basal cisterns and the sylvian fissures as well as extending down to the pre-pontine cistern and also involving the sulci of the right frontal and occipital lobes bilaterally. again seen is layering blood within the occipital horns of the lateral ventricles as well as within the fourth ventricle. the extent of the hemorrhage is not significantly changed. the ventricles are unchanged in size. the /white matter differentiation is maintained with no areas of infarcts by ct. the visualized orbits, paranasal sinuses, and mastoid air cells are clear. no suspicious bony abnormalities are seen. there is a periapical lucency around the roots of the left maxillary first molar. there is also a bony defect of the lateral wall of the left maxillary sinus which may represent a prior - procedure. there is minimal mucosal thickening of the left maxillary sinus. cta head: no aneurysms, stenoses, occlusions, or vascular malformations were seen. impression: no aneurysms or vascular malformations. extensive subarachnoid hemorrhage and intraventricular hemorrhage is not significantly changed compared to . brief hospital course: pt was admitted through the emergency room for c/o headache with noted sah. cerebral angiogram was done and was negative for aneurysm. on he underwent mri and cta. based on those results he was maintained in the icu with close observation and an angiogram was set up for . his exam remained stable and his bp was kept at a range of 90-130. his second angiogram showed no aneurysm on . the patient continued to complain of neck pain and he had nuchal rigidity. he was allowed to start motrin for the pain, which did not help. the patient was given oxycodone and fioricet which improved his pain. on he was transferred to the step-down unit. he had a tcd on which showed mild vasospasm. he was asymptomatic and was given fluids. he had a repeat tcd on which showed that the vasospasm had resolved. a repeat tcd on was also negative. the patient was neurologically stable and was cleared to go home by pt. he was ambulating, taking in food po, voiding and his pain was under control prior to discharge. his nimodipine was pre-ordered at his pharmacy so it will be ready for him when he goes there tomorrow. medications on admission: medications prior to admission: penicillin 500mg po qid discharge medications: 1. oxycodone 5 mg tablet sig: 1-2 tablets po q4h (every 4 hours) as needed for pain. disp:*50 tablet(s)* refills:*0* 2. butalbital-acetaminophen-caff 50-325-40 mg tablet sig: tablets po q6h (every 6 hours) as needed for headache. disp:*30 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* 4. levetiracetam 500 mg tablet sig: two (2) tablet po bid (2 times a day). disp:*120 tablet(s)* refills:*2* 5. nimodipine 30 mg capsule sig: two (2) capsule po q4h (every 4 hours) for 9 days. disp:*108 capsule(s)* refills:*0* discharge disposition: home discharge diagnosis: subarachnoid hemorrhage 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 sutures and/or 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 call to schedule an appointment with dr. to be seen in 4 weeks. you will need a follow up angiogram with dr. in 6 weeks. call to schedule an appointment. procedure: arteriography of cerebral arteries arteriography of cerebral arteries diagnoses: hyposmolality and/or hyponatremia intracerebral hemorrhage 

Answer: The patient is high likely exposed to