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: addendum: correction: after much discussion with the patient, family, and consulting teams, patient agreed to go to rehab to complete the recommended 4 week course of ampicillin. he was discharged on to rehab, and will require ampicilin until . thus, he was not started on vancomycin. discharge disposition: extended care facility: green nursing & rehab center - discharge diagnosis: primary diagnosis: 1. enterococcus bacteremia 2. hypotension secondary to bacteremia secondary diagnosis: 1. chronic systolic congestive heart failure 2. atrial fibrillation 3. hypertension 4. history of ventricular fibrillation cardiac arrest discharge condition: afebrile, hemodynamically stable. discharge instructions: you were admitted with an infection in your blood. you were treated with your antibiotics and your blood was closely monitored. you were monitored in the icu because your blood pressure was running low. we looked for a source of infection, but you ct scan of your abdomen, ultrasound, and echo of your heart showed no sources of infection. your pacemaker is not infected either. we are started you on ampicillin for this infection. you will be kept on a 4 week course of ampicillin to treat this infection. thereafter, cardiology will consider placing a defibrillator. in the meantime, you will have a lifevest fitted for your heart. if you have chest pain, palpitations, shortness of breath, fevers, chills, or any other symptoms that concern you please see your primary doctor or go to the emergency room. weigh yourself every morning, md if weight > 3 lbs. adhere to 2 gm sodium diet please call infectious disease clinic if you have questions about vancomycin at . please fax lab results to them at . followup instructions: you have an appointment with dr. in infectious disease on at 10am. the clinic phone number is . you have an appointment with dr. in cardiology on at 1pm. the clinic phone number is . md procedure: venous catheterization, not elsewhere classified diagnoses: thrombocytopenia, unspecified congestive heart failure, unspecified diabetes mellitus without mention of complication, type ii or unspecified type, not stated as uncontrolled acute kidney failure, unspecified hyposmolality and/or hyponatremia hypertensive chronic kidney disease, unspecified, with chronic kidney disease stage i through stage iv, or unspecified atrial fibrillation aortocoronary bypass status aortic valve disorders chronic kidney disease, unspecified other specified forms of chronic ischemic heart disease bacteremia chronic systolic heart failure long-term (current) use of anticoagulants cardiac pacemaker in situ streptococcus infection in conditions classified elsewhere and of unspecified site, streptococcus, group d [enterococcus] other lesion of median nerve 

Answer: The patient is high likely exposed to