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 65-year-old who presented to emergency department with coffee ground emesis times three the night prior to admission. the patient reported a two week history of right lower quadrant and left lower quadrant abdominal pain. the pain was a constant, colicky pain that kept the patient up at night and the pain could not be relieved by either position or medication. the patient one episode of melena in the emergency department. he also denied any recent change in bowel habits, recent nausea, hematuria, or dysuria. of note was that the history was limited due to the patient being on a tracheostomy tube with limited verbal responses. past medical history: the previous medical history is significant for coronary artery disease status post myocardial infarction in , left ventricular ejection fraction was 60% with pulmonary hypertension; atrial fibrillation; chronic obstructive pulmonary disease, steroid and oxygen dependent; multiple pneumonias, methicillin resistant staphylococcus aureus, fluoroquinolone resistant klebsiella, and pseudomonas; status post cerebrovascular accident with left hemiparesis secondary to right cerebral cva; left iliopsoas bleed on heparin; abdominal aortic aneurysm, 5 cm and stable; multiple gi bleeds; gastroesophageal reflux disease; diverticulosis; history of c. difficile colitis; facial trauma with multiple fractures; zenker's diverticulum; cataracts, status post right eye cataract surgery; status post multiple falls. allergies: the patient is allergic to iv contrast dye. he is also allergic to strawberries. medications on admission: asa 81 mg q. day, heparin 5000 units subq. b.i.d., verapamil 40 mg q. 8 hours, isordil 10 mg t.i.d., digoxin 0.125 mg q. day, albuterol nebulizers q. 4 hours, atrovent nebulizers q. 4 hours, prednisone 7.5 mg q. day, flovent metered dose inhaler 220 mcg 2 puffs b.i.d., combivent, celexa 40 mg q. day, ativan 0.5 mg q.h.s., tums one tablet q. 8 hours, dulcolax suppositories, lactulose, and fiber source via g-tube feeds. habits: there is rare alcohol use. the patient has a 36 pack year history of tobacco use but he quit 16 years ago. social history: the patient lives alone in the nursing home. family history: the patient's mother had coronary artery disease. physical examination: the patient is a 65-year-old male looking older than his stated age with tracheostomy tube, appearing in mild distress. vital signs in the emergency department on admission were temperature 96.2 degrees, pulse 117, blood pressure 90/54, respiratory rate 28, oxygen saturation 100% on room air. heent examination revealed extraocular movements intact. pupils were equal, round, and reactive to light. mucous membranes were dry. the neck revealed no lymphadenopathy but there was blood oozing from the tracheostomy site. the chest revealed decreased breath sounds on the left side but the chest was difficult to auscultate due to tracheostomy tube, questionable crackles on the left side. examination of the heart revealed inability to auscultate s1 or s2. the abdomen revealed g-tube surgical scar. there was tenderness to palpation in both lower quadrants. rectal examination was guaiac positive. on genitourinary examination, the patient was wearing a diaper for incontinence. the skin revealed multiple ecchymoses on both arms bilaterally. neurologically, right knee dependent reflex was increased approximately 3+ with clonus. the left babinski reflex showed upgoing toes. the left arm and left leg showed signs consistent with hemiparesis. the patient did sense painful stimulus in the left leg. the patient was oriented to place and person but was unaware of date. he seemed mildly confused about the length of his recent symptoms. hospital course: the patient was admitted to the medicine team with an initial blood pressure of 90/54 and heart rate of 117. the blood pressure increased to 115/56 and heart rate was 89 with 1 liter of normal saline. however his hematocrit decreased from 33 to 28 and he was transfused with 2 units of packed red blood cells overnight. his hematocrit continued to decrease to 23 and he had another large melanotic stool. the morning of the day after admission, he underwent endoscopy which revealed a cratered 7 mm ulcer at the anterior bowl of the duodenum with a visible vessel. this was treated with epinephrine and bicap electrocautery. other findings noted a small hiatal hernia in the esophagus, esophageal erosions, multiple diverticula in the middle and lower third of the esophagus, and - tear at the eg junction. there was also fundal gastritis in the stomach. after the endoscopy, the patient was moved back to the floor and overnight he had another very large melanotic stool and more coffee ground emesis and his blood pressure decreased to 70/40 at which point the decision was made to transfer the patient to the medical intensive care unit for emergency endoscopy. the emergency endoscopy performed in the intensive care unit identified the same bleeding duodenal ulcer site which was treated with epinephrine and electrocautery; however, attempted endoscopic clipping of the bleeding vessel was unsuccessful. during this period in the intensive care unit, the patient was transfused with 5 units of packed red blood cells. the patient remained in the micu for two days. on his second day in the micu, repeat endoscopy was performed at which point endoscopic clipping of the vessel was successful. however the patient's hematocrit decreased to approximately 28 and the patient received another unit of packed red blood cells and his hematocrit continued to climb. on hospital day #4, the patient was transferred out of the medical intensive care unit and back to the floor. his hematocrit appeared stable. he had one small melanotic stool but his hematocrit had remained above 30 and he had not required any further transfusions. total amount of blood transfusion the patient had required over the hospital course had been 8 units of packed red blood cells. other significant hospital events for mr. included replacement of his gj-tube which was converted to a g-tube by interventional radiology and he also had some angina which was relieved by sublingual nitroglycerin. the patient was stable at discharge. discharge diagnoses: upper gastrointestinal bleed, status post three endoscopic procedures; angina secondary to anemia; gastrostomy tube placement by interventional radiology. discharge medications: prilosec 40 mg per g-tube b.i.d. until after which the medication will be 40 mg per g-tube q. day; prednisone 7.5 mg per g-tube q. day; verapamil 40 mg per g-tube q. 8 hours only if blood pressure is greater than 120 systolic, hold verapamil if blood pressure is less than 120 systolic; albuterol/atrovent nebulizers q. 4 hours; flovent 220 mcg metered dose inhaler 2 puffs b.i.d.; celexa 40 mg per g-tube q. day; ativan 0.5 mg per g-tube q.h.s. p.r.n.; nitroglycerin 0.5 mg sublingual q. 5 minutes p.r.n. chest pain only if blood pressure is greater than 110. the patient's medications that will be held on discharge are aspirin, heparin, digoxin, and isordil. these medicines are to be held until the patient is seen by his primary care physician, . . discharge instructions: other treatments required include frequent tracheal suctioning. diet should be a low salt cardiac diet. the patient is on restricted activity. disposition: the patient is to return to nursing home with a followup appointment with his primary care physician, . , on at 9:10 a.m. in , telephone number , fax number . , m.d. dictated by: medquist36 d: 14:47 procedure: continuous invasive mechanical ventilation for 96 consecutive hours or more other endoscopy of small intestine percutaneous [endoscopic] gastrostomy [peg] endoscopic control of gastric or duodenal bleeding endoscopic control of gastric or duodenal bleeding diagnoses: coronary atherosclerosis of native coronary artery esophageal reflux chronic airway obstruction, not elsewhere classified atrial fibrillation diaphragmatic hernia without mention of obstruction or gangrene chronic or unspecified duodenal ulcer with hemorrhage, without mention of obstruction abdominal aneurysm without mention of rupture diverticulosis of colon (without mention of hemorrhage) 

Answer: The patient is high likely exposed to