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: this is a 78-year-old male with a history of having been on coumadin for several months prior to admission. he was seen in the emergency room one day prior to admission, status post a fall, and was treated for right upper extremity injuries and subsequently discharge home in stable condition at that time with an inr of 1.3. however, he returned on the with a history of reported decreased alertness as noted by family and was taken urgently for a head ct scan which showed a large right subdural hematoma. a neurosurgery consultation was obtained at that time, and the patient was taken emergently to the operating room for drainage of the subdural hematoma. past medical history: (his previous medical history is reported to have included) 1. atrial fibrillation (for which he was on the coumadin). 2. history of hypertension. 3. history of chronic obstructive pulmonary disease. 4. history of type 2 diabetes mellitus. 5. history of hematochromatosis. 6. history of renal stones. 7. history of anemia. 8. history of peptic ulcer disease. 9. history of sleep apnea. medications on admission: medications at the time of admission were uncertain due to the patient's comatose status. his only known medication was the coumadin. allergies: allergic history reaction was unknown. physical examination on presentation: on physical examination, the patient was nonresponsive to verbal or painful stimuli. he has positive corneas bilaterally, and the right pupil was round at 6 mm. left pupil was round and 3 mm but reactive to 2 mm. there was no withdrawal of the bilateral upper extremities to painful stimuli, and there was sluggish withdrawal in the bilateral lower extremities with painful stimuli. toes were bilateral upgoing. hoffmann was negative bilaterally. pertinent laboratory data on presentation: laboratory findings at the time of admission showed a ptt of 27.1, a pt of 13.9, and an inr of 1.3. a hematocrit of 27.1, white blood cell count of 18.9, and a platelet count of 154. radiology/imaging: a head ct at the time of admission showed a large right-sided subdural hematoma. hospital course: he was taken emergently to the operating room for evacuation of the hematoma. subsequent to this, the patient was taken to the trauma intensive care unit at approximately 9:15 p.m. after drainage of the hematoma. however, at 11:15 p.m., the patient was noted to have bilateral fixed and dilated pupils. a stat ct scan of the head was again performed which demonstrated reaccumulation of a right-sided subdural, primarily over the high frontal parietal convexity measuring approximately 25% of the preoperative size of the subdural. notably, however, there was relatively satisfactory evacuation of the low temporal clot, and there was still air present in the subdural space from the earlier craniotomy that evening. there was also a new right temporal intercerebral hematoma and intraventricular hemorrhage. there was also right-sided massive hemispheric brain swelling with a 3-cm midline shift, a trapped contralateral ventricle, and diffuse of the /white differentiation consistent with infarction or ischemic brain injury. on examination at that time, the pupils were 8 mm and fixed. there was trace corneas bilaterally and trace cough, but no withdrawal or motor response in all four extremities to noxious stimuli. the inr remained 1.3. he had been given 2 units of fresh frozen plasma. the platelets were 85,000. dr. had a long discussion with the patient's wife, daughter, and extended family, as well as a conversation with the daughter in who is reportedly an intensive care unit nurse. the family understood the magnitude of the situation and the gravity of the patient's condition. yet, at that time, they elected to continue with full aggressive therapy. the patient's neurologic condition continued to deteriorate to the point where the patient was completely unresponsive on , with no evidence of withdrawal of any extremities to painful stimuli. pupils remained fixed and dilated, and serial brain death examinations showed the patient to have met all criteria for brain death, and the family was so informed. the family understood the magnitude and gravity of the situation. therefore, the patient was maintained on ventilatory support with an intermittent mandatory ventilation of 4 and fio2 was switched to room air. neo-synephrine drops were slowly decreased, and the patient's heart stopped beating, and he was declared deceased at 2220 on . , m.d. dictated by: medquist36 procedure: continuous invasive mechanical ventilation for less than 96 consecutive hours insertion of endotracheal tube arteriography of femoral and other lower extremity arteries incision of vessel, lower limb arteries suture of artery other craniotomy diagnoses: congestive heart failure, unspecified chronic airway obstruction, not elsewhere classified atrial fibrillation hematoma complicating a procedure accidental puncture or laceration during a procedure, not elsewhere classified subdural hemorrhage following injury without mention of open intracranial wound, unspecified state of consciousness atherosclerosis of native arteries of the extremities, unspecified accidental fall from commode 

Answer: The patient is high likely exposed to