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 76 year-old gentleman who was recently admitted to the from to for subdural hematoma on the right, which occurred after falling and hitting the back of his head. he was discharged here on to a rehab hospital and was neurologically stable at that time. he returned to the emergency department this admission, which was on with some question of deteriorating mental status. past medical history: 1. hypertension diagnosed in the past two weeks. 2. gastroesophageal reflux disease. 3. crohn's disease. 4. urinary urgency. past surgical history: 1. cholecystectomy. 2. hernia repair. physical examination: his height was 6', weight was 167 pounds. blood pressure 130/60. heart rate 76 and 99% o2 sat on room air. he was alert and oriented times three. he was in no acute distress. his neck showed full range of motion. laboratories on admission: white blood cell count 9.3, hematocrit 35.6, platelets 434, sodium 136, potassium 4.8, chloride 98, bicarb 24, bun 12, creatinine .9. he did have a repeat cat scan of the head, which did show mild increase in the extent of the dural collection compared with the previous study. there was more mass effect in the right cerebral hemisphere and displacement of the midline structures to the left area. hospital course: the patient was admitted and brought to the operating room where he underwent evacuation of his right subdural hematoma. postoperatively, he stayed in the pacu overnight for close neurological evaluation. his vital signs were stable. he opened his eyes to voice and moved all four extremities and followed commands. he did have a subgaleal drain that was placed intraoperatively and discontinued on the first postoperative day. he did have a repeat cat scan on the first postoperative day that did show decrease in the size of the right subdural hemorrhage with postoperative changes and decreased mass effect. the patient was then transferred to the floor. he continued with close neurological observation and was seen by physical therapy and occupational therapy. it was recommended that he would benefit from short term rehab placement. he did have some sodiums in the low 130 range and for this was treated with sodium tablets 2 grams twice a day and the fluid restriction to 750 milliliters per day. medications on discharge: 1. tylenol prn. 2. percocet prn. 3. colace 100 mg b.i.d. 4. metoprolol 50 mg 1.5 tablets t.i.d. 5. ranitidine 150 mg b.i.d. 6. lisinopril 40 mg q.d. 7. atorvastatin calcium 10 mg q.d. 8. doxazosin methylate 4 mg h.s. 9. sodium chloride 1 gram two tablets po b.i.d. he will need to have his serum sodium levels monitored every day and continue on his fluid restriction of 750 milliliters per day. he already has a scheduled appointment with dr. with repeat cat scan previously scheduled. , m.d. dictated by: medquist36 procedure: incision of cerebral meninges diagnoses: esophageal reflux unspecified essential hypertension other convulsions unspecified fall regional enteritis of unspecified site subdural hemorrhage following injury without mention of open intracranial wound, unspecified state of consciousness 

Answer: The patient is high likely exposed to