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: discharge status: the patient was to be discharged to a rehabilitation facility. discharge diagnoses: three vessel coronary artery disease. congestive heart failure. gastrointestinal bleed. status post cerebrovascular accident. depression. medications on discharge: 1. aspirin 325 mg by mouth once per day. 2. toprol-xl 200 mg by mouth once per day. 3. lisinopril 40 mg by mouth once per day. 4. atorvastatin 40 mg by mouth once per day. 5. pantoprazole 40 mg by mouth twice per day (times two weeks). 6. amoxicillin 1000 mg by mouth twice per day (times two weeks). 7. metronidazole 500 mg by mouth twice per day (times two weeks). 8. mirtazapine 50 mg by mouth at hour of sleep. 9. olanzapine 2.5 mg by mouth at hour of sleep. 10. nortriptyline 100 mg by mouth at hour of sleep. 11. clonazepam 0.5 mg by mouth three times per day as needed. 12. pantoprazole 40 mg by mouth once per day (after the patient finishes his twice per day dose for two weeks). discharge instructions-followup: the patient will be followed by the physicians at the rehabilitation facility. he was encouraged to contact his primary care physician to schedule follow-up appointment within one week after discharge. the patient will also be scheduled to follow up in the cardiac surgery outpatient clinic to discuss a potential coronary artery bypass grafting at a later date. , procedure: other endoscopy of small intestine diagnostic ultrasound of heart diagnoses: coronary atherosclerosis of native coronary artery congestive heart failure, unspecified peripheral vascular disease, unspecified depressive disorder, not elsewhere classified systolic heart failure, unspecified hemorrhage of gastrointestinal tract, unspecified acute myocardial infarction of unspecified site, initial episode of care phlebitis and thrombophlebitis of superficial veins of upper extremities helicobacter pylori [h. pylori] 

Answer: The patient is high likely exposed to