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 79 year old male who came from an outside hospital status post three bloody stools. he was orthostatic with a hematocrit of 22.8. during his stay at the outside hospital, he was given a total of 20 units of packed red blood cells, 16 units of platelets and 10 mg of vitamin k and four bags of fresh frozen plasma to correct his inr. he was also on coumadin. nasogastric lavage did not have any coffee-grounds in it. he was scoped and had small polyps that were not bleeding. a red tag scan was negative and a repeat scan after melanotic stool showed uptake throughout his entire colon. he was scoped the next day, which showed a friable cecum without bleeding. he was transferred to for angiography. past medical history: 1. cerebrovascular accident in with left paralysis, since resolved. 2. myelodysplastic syndrome with pancytopenia. 3. gastric ulcers. 4. chronic renal insufficiency. 5. coronary artery disease, status post myocardial infarction in , status post coronary artery bypass grafting in . 6. hypertension. 7. congestive heart failure. 8. type 2 insulin dependent diabetes mellitus. 9. questionable gastrointestinal bleed. 10. peripheral vascular disease. 11. alcohol abuse, last drink . 12. malignant gastrointestinal polyp in , subsequent scopes have been negative. 13. transurethral resection of prostate. 14. cataract surgery. 15. helicobacter pylori in . allergies: the patient has no known drug allergies. medications on admission: zantac, nph, actose, coumadin, altace, lasix, folate, pyridoxine, iron sulfate and multivitamins. physical examination: on physical examination on transfer to the medical team from the medical intensive care unit, the patient had a temperature of 97.8, pulse 81, blood pressure 135/56 and oxygen saturation 99% in room air. general: pleasant male in no acute distress. head, eyes, ears, nose and throat: anicteric sclerae, oropharynx clear, moist mucous membranes. neck: no jugular venous distention. cardiovascular: regular rate and rhythm, no murmurs. lungs: clear to auscultation bilaterally. abdomen: soft, nontender, positive bowel sounds. extremities: no peripheral edema. laboratory data: upon transfer, white blood cell count was 2.1, hemoglobin 11.1, hematocrit 32.4, platelet count 72,000, sodium 136, potassium 4.2, chloride 111, bicarbonate 16, bun 20, creatinine 1, platelet count 212,000, prothrombin time 14.6, partial thromboplastin time 35.5 and inr 1.4. hospital course: 1. gastrointestinal: the patient was transferred from the outside hospital for possible angiography. he was admitted to the medical intensive care unit for close observation. there was no evidence of further bleeding since his arrival here, with a stable hematocrit and no melena. therefore, angiography was not performed. a repeat tagged red blood cell scan, to look for a fistula, was negative. the patient was transferred to the medicine service and, again, his hematocrit remained stable. he was able to tolerate oral intake and was discharged to follow up for a repeat colonoscopy in six to eight weeks. coumadin, non-steroidal anti-inflammatory drugs and aspirin were discontinued and he was to await further instructions from his gastroenterology doctor as an outpatient concerning these medications. 2. cardiovascular: the patient remained stable. 3. fluids, electrolytes and nutrition: the patient was able to tolerate oral intake and his diet was eventually advanced to a diabetic diet without difficulty. discharge diagnosis: gastrointestinal bleed of unknown source. discharge medications: zantac. nph. actose. altace. lasix. folate. pyridoxine. iron sulfate. multivitamins. discharge instructions: 1. call to schedule a follow-up colonoscopy. 2. avoid aspirin and aspirin-like products. 3. do not take coumadin. 4. resume normal activities. 5. call doctor greater than 101, increased pain, weakness, nausea, vomiting and/or blood in stool. , m.d. dictated by: medquist36 procedure: colonoscopy endoscopic destruction of other lesion or tissue of large intestine diagnoses: coronary atherosclerosis of native coronary artery congestive heart failure, unspecified unspecified essential hypertension diabetes mellitus without mention of complication, type ii or unspecified type, not stated as uncontrolled aortocoronary bypass status blood in stool old myocardial infarction ulceration of intestine 

Answer: The patient is high likely exposed to