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 57 year old woman who was walking on her treadmill the evening of admission, when she developed a sudden onset of severe 10 on 10 headache, worse than any previous headache she had ever had. she had to get off the treadmill and lay down. she took 3 ecotrin and continued with headache for approximately 4 hours until she awoke her husband and then asked to go to the emergency room. she had positive nausea, denies any neck pain, visual changes, shortness of breath, chest pain or abdominal pain. past medical history: osteopenia and headaches. allergies: no known allergies. medications: evista. physical examination: temperature is 97.1, 140/70, 88, 20, 99% on room air. heent: mucous membranes moist. pupils equal, round and reactive to light. eoms full. pulmonary: lungs clear bilaterally. cardiovascular: regular rate and rhythm. extremities: no cyanosis, clubbing or edema. neuro: awake, alert and oriented times 3 with no drift. smile symmetric. eoms full. pupils equal, round and reactive to light. visual fields full. strength 5/5 in all muscle groups. reflexes 2+ throughout. toes are mute. hospital course: the patient was admitted to the icu for close neurologic observation headache. cta to rule out aneurysm or vascular malformation. she had an angiogram on that showed a left ophthalmic aneurysm, which was coiled without complication. she was monitored in the icu. postop her vital signs remain stable. she was neurologically intact. pupils equal, round and reactive to light. eoms full. chest clear to auscultation. her head ct on admission showed no obvious bleeding. on she had a central line place to monitor cvps. her blood pressure was kept initially less than 140 and then liberalized to the 150s. she remained neurologically intact. she was transferred to the step down unit on . she remains neurologically stable, was transferred to the regular floor on , where she also remained neurologically intact. she was discharged to home on with follow up with dr. in one week. discharge medications: her medications at the time of discharge include: 1. levofloxacin 500 mg po q.24h for a uti. 2. restarting her evista, which was her pre-hospital medication. condition on discharge: her condition remains stable at the time of discharge. , procedure: venous catheterization, not elsewhere classified arteriography of cerebral arteries endovascular (total) embolization or occlusion of head and neck vessels diagnoses: subarachnoid hemorrhage disorder of bone and cartilage, unspecified 

Answer: The patient is high likely exposed to