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: melena major surgical or invasive procedure: esophagoduodenoscopy with cauterization of duodenal ulcer history of present illness: 75 year old man on asa and plavix for history of cva, hx of tobacco and etoh abuse presented to his pcp with one week of melena and increased stool output. he has had small dark stools, epigastric discomfort, and decreased appetite for ~1 week. his stool output had increased from 1 bd /day to then several days pta had constipation. he also endorsed lh, denied n/v, cp/sob. later that night, lab called pcp that pt had hct 20. pt was sent to ed where he had negative ng lavage. egd showed an actively oozing duodenal ulcera in posterior bulb. it was injected with epinephrine and cauterized. upon arrival at ed, his hematocrit was 19.3. he received 2 liters of ns and total 6 units of prbc with increased in hct to 33. he was initially admitted to the micu for observation overnight then transferred to the floor with stable hct. past medical history: cva x 3 with blindness in right eye hypercholesterolemia heavy alcohol use social history: drinks 3-4 glasses of wine or beer per day and quit smoking 4 days ago. 60 pack year history. lives with wife and is a retired shoemaker who once worked in . originally from stuttgard. has one daughter. physical exam: t98.1 bp 123/76 (107-150/70-81) hr 80 (80-90) 16 98%ra gen wdwn elderly man, lying flat in bed, comfortable heent , , eomi, 2+carotid, r bruit, jvp ~ @45' o/p clear, mm dry cv faint heart sounds, nl s1 + s2, no m/r/g noted pulm bibasilar crackles l>r, ~ from base abd +bs, mild distension, mild tenderness in hypogastrum, no rebound tenderness ext no edema, 2+dp neuro cn2-12 grossly intact pertinent results: 05:00am wbc-17.3* hct-19.3* mcv-97 mch-32.8* mchc-33.9 rdw-17.2* plt count-246 neuts-81.2* lymphs-13.6* monos-4.1 eos-0.6 basos-0.5 05:00am ck(cpk)-77 ck-mb-3 ctropnt-<0.01 07:18pm ck(cpk)-71 ck-mb-notdone ctropnt-<0.01 01:50pm hct-21.7* 07:18pm hct-22.5* 09:28pm hct-23.4* brief hospital course: 1. duodenal ulcer after cauterization by egd and transfusion of 6u prbc, his hct remained stable at 33 and he had no further episodes of melena or frequent bm. serology for h. pylori was positive and he was started on clarithromycin and amoxicillin x 14 days in addition to protonix . his asa and plavix were discontinued and the patient was asked to address with his primary care doctor when he should begin taking these. 2. anemia iron studies were consistent with iron deficiency anemia. he was started on iron daily. in addition he was given b12, folate, and mvi though these levels were normal, given his alcoholism. 3. etoh use he was placed on ciwa scale with diazepam, which he did not require. he was given mvi, thiamine, and folate as mentioned. 4. h/o cva he has had 3 strokes in the past, but per patient he had a negative work up. he continued statin. while the asa and plavix were held, it is likely he needs to be placed back on these medications for this significant cva history; this will be determined by his pcp as an outpatient. medications on admission: asa 325 mg po qd plavix 75 mg po qd atorvastatin 10 mg po qd discharge medications: 1. thiamine hcl 100 mg tablet sig: one (1) tablet po qd (once a day). disp:*30 tablet(s)* refills:*2* 2. multivitamin capsule sig: one (1) cap po qd (once a day). disp:*30 cap(s)* refills:*2* 3. bisacodyl 5 mg tablet, delayed release (e.c.) sig: two (2) tablet, delayed release (e.c.) po qd (once a day) as needed for constipation. disp:*30 tablet, delayed release (e.c.)(s)* refills:*0* 4. ferrous sulfate 325 (65) mg tablet sig: one (1) tablet po qd (once a day). disp:*30 tablet(s)* refills:*2* 5. atorvastatin calcium 10 mg tablet sig: one (1) tablet po once a day. 6. clarithromycin 500 mg tablet sig: one (1) tablet po q12h (every 12 hours) for 14 days. disp:*28 tablet(s)* refills:*0* 7. amoxicillin 500 mg capsule sig: two (2) capsule po q12h (every 12 hours) for 14 days. disp:*56 capsule(s)* refills:*0* 8. pantoprazole sodium 40 mg tablet, delayed release (e.c.) sig: one (1) tablet, delayed release (e.c.) po once a day. disp:*60 tablet, delayed release (e.c.)(s)* refills:*2* discharge disposition: home discharge diagnosis: duodenal ulcer upper gastrointestinal bleed blood loss anemia helicobacter pylori infection history of stroke x 3 discharge condition: stable discharge instructions: you have a duodenal ulcer. you are being given medicine to help reduce your gastric secretions to allow this to heal. you have also tested positive for h. pylori, a bacteria that can contribute to ulcers, and will need to take a course of antibiotics to treat this. call your doctor for any new blood in your stool, diarrhea, dark black stools, lightheadedness, or fatigue. followup instructions: please call your primary care doctor, dr. , to make a follow up appointment within the next 1-2 weeks. he should discuss with you the risks and benefits of restarting aspirin and plavix to prevent further strokes given your ulcer and gastrointestinal bleeding. procedure: injection or infusion of other therapeutic or prophylactic substance endoscopic control of gastric or duodenal bleeding transfusion of packed cells diagnoses: pure hypercholesterolemia acute posthemorrhagic anemia constipation, unspecified other late effects of cerebrovascular disease chronic or unspecified duodenal ulcer with hemorrhage, without mention of obstruction helicobacter pylori [h. pylori] other and unspecified alcohol dependence, continuous 

Answer: The patient is high likely exposed to