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: allergies: patient recorded as having no known allergies to drugs attending: chief complaint: gi bleed major surgical or invasive procedure: none history of present illness: mr. is a 78 y.o. male with hx of afib and dvt on coumadin, now presenting with multiple episodes of black and maroon stool at home which began at 6am. wife noticed that he was fatigued and slightly confused in last 2 days. incontinent of urine last night. woke up at 6am with large amount of maroon/black stool in the bed. several large movements at home. none in the ed so far. denies n/v/abdominal pain. no hematemesis. no nsaids. no prior episodes of ugib/lgib. denies cp/sob. in ed, hr 90s on beta-blocker bp 140 systolic ---> 110. mentating ok. ng tube in ed neg- no bile seen. past medical history: age arf with arthritis, heart murmur. age 20 hypertension, 4+ labile with some of 200/100 for which he has gone to ed for control. bp will often decrease by 30 points in doctors if several are obtained. gout on allopurinol, no podagra since lipid abnormality, controlled with medication prostatism, alpha blocker started fe deficiency anemia, due to gerd dvt left leg, warfarin x 6 mo dm type ii noted. barretts esophagitis, , now bx neg . nkda social history: lives with wife. no smoking. occasional etoh. accompanied by wife and daughter today. family history: negative for premature cad, htn, lipid abnormaltiy. physical exam: vs: 99.1 , 129/59, 88, 96ra, 11 gen: nad heent: anicteric, slightly dry mm, perrla, pale chest: ctab cv: irreg irreg, 2/6 sem abd: s/nt/nd/nabs ext: no edema neuro: aox3, non-focal pertinent results: 6.7 >18.1<177 n:64.6 l:30.4 m:3.9 e:1.0 bas:0.1 139 105 79 218 4.4 23 2.0 ck: 192 mb: pnd trop-t: pnd pt: 38.2 ptt: 35.0 inr: 4.1 . old data () . prior endoscopies: - multiple prior egd for barrett's surveillance- most recent by dr. short seg barrett's - last colonoscopy with mild sigmoid diverticulosis . echo performed --> + mr, 1+ as/ar. ett echo no ischemia to 5 , rapid af (?aberrancy vs vt) bun/creatinine moderately elevated. brief hospital course: a/p:78 yo m w/ mmp p/w gib in setting of elevated inr. . # gib: egd showed known stable esophageal disease. colonoscopy showed an area of bleeding tissue, unable to further characterize per gi fellow. this was cauterized and ligated with bleeding stopped. coumadin regimen was discussed with pt's cardiologist, dr. , who suggested restarting coumadin on discharge (allowable by gi) with close follow up of inr in his clinic. medications on admission: (per omr): aspirin 81 mg--2 tablet(s) by mouth once a day atenolol 100 mg--1 tablet(s) by mouth at bedtime furosemide 40 mg--1 tablet(s) by mouth once a day lisinopril 40 mg--1 tablet(s) by mouth once a day metformin 500 mg--2 tablet(s) by mouth twice a day omeprazole 20 mg--1 capsule(s) by mouth once a day simvastatin 20 mg--1 tablet(s) by mouth once a day spironolacton-hydrochlorothiaz 25 mg-25 mg-- tablet(s) by mouth qam terazosin 10 mg--1 capsule(s) by mouth at bedtime warfarin 5 mg--1 tablet(s) by mouth once a day dose as directed by inr glipizide 10 mg--1 tablet(s) by mouth twice a day discharge medications: 1. continue all home medications 2. coumadin 5 mg tablet sig: one (1) tablet po once a day. 3. outpatient lab work check inr (coumadin level) on . discharge disposition: home discharge diagnosis: gi bleed discharge condition: stable discharge instructions: please follow up with dr. . he is aware of the plan. you will need to have your coumadin level checked on . you be given coumadin 10 mg today in the hospital then will take coumadin 5 mg until you hear from dr. office. you were found to have an area of bleeding tissue in your colon. small clips were placed around it to stop the bleeding. you may see the clips (like staples) pass in your stool and that is okay. if you have any black, maroon stool or see red blood in your stool, stop the coumadin and go to the emergency room. if you have any chest pain, palpitations, dizziness, or abdominal pain, call dr. . followup instructions: provider: , m.d. phone: date/time: 10:00 provider: , md phone: date/time: 3:30 -- this is a new primary care doctor , call to cancel if you chose another primary care doctor md procedure: other endoscopy of small intestine endoscopic destruction of other lesion or tissue of large intestine diagnoses: abnormal coagulation profile acute posthemorrhagic anemia diabetes mellitus without mention of complication, type ii or unspecified type, not stated as uncontrolled acute kidney failure, unspecified hypertensive chronic kidney disease, unspecified, with chronic kidney disease stage i through stage iv, or unspecified atrial fibrillation chronic kidney disease, unspecified hemorrhage of gastrointestinal tract, unspecified diverticulosis of colon (without mention of hemorrhage) 

Answer: The patient is high likely exposed to