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: this is an 80-year-old white male with a history of hypertension and stroke who presented to the hospital with complaints of back pain for three days. the workup would include an ultrasound of the abdomen revealing a 10 cm abdominal aortic aneurysm. the patient was also noted to be orthostatic and was subsequently transferred to the hospital for further care for the possibility of a leaking abdominal aortic aneurysm. just prior to transfer, the patient's blood pressure increased to 180s to 200s, and was treated on nitrodrip and nitroprusside drip, and lopressor all of which were quickly discontinued with his systolic blood pressure decreased rapidly to the 80s. on arrival to the emergency room, a systolic was in the 60s to 70s. a trauma line was quickly placed left subclavian and 4 units of packed cells o negative was given from a level 1 transfuser, 2 liters of crystalloid as well were instilled in this patient, and his systolic blood pressure improved to the 130s, but only for a few minutes, and then his blood pressure again dropped to the 50s and was rushed to the operating room. past medical history: 1. hypertension. 2. cerebrovascular accident. allergies: no known drug allergies. medications: unknown what his medications were. physical examination: he was mildly distended in his abdomen, but firm with a pulsatile mass. his extremities were cool and clammy. he was brought to the operating room on with the likely diagnosis of ruptured abdominal aortic aneurysm. in the operating room, they found a ruptured abdominal aortic aneurysm which was repaired with an aortic bifemoral bypass graft. the attending surgeon was dr. . intraoperatively, he was given 7 units of packed cells, 3 units of fresh-frozen plasma, and 2 of platelets. he had 2.5 units of cell and 9 liters of crystalloid. he had a 4 liter estimated blood loss and 175 of urine output was produced. he was started on antibiotics. he was on neo-synephrine drip as well as propofol. he had full vent support and levophed was started as well to maintain his systolic blood pressure. p.a. catheter was placed postoperatively to help with fluid management. he was transferred to the surgical intensive care unit immediately postoperatively, and he had a complicated and long intensive care unit course including a myocardial infarction, atrial fibrillation, acalculous cholecystitis, status post cholecystostomy drainage tube, acute renal failure with aneuria, hemodynamic instability, anemia, electrolyte abnormalities, hypotension, and hyperalimentation for malnutrition, unable to eat, ventilator dependence, volume overload requiring lasix. cardiology was following him as well secondary to the atrial fibrillation in which he had amiodarone drip performed and transitioned to po. patient was extubated on of 26th, but reintubated one hour later because he became in respiratory distress. he again failed the weaning trial and had ventilatory dependence on , but on , he was extubated. continuing on his tpn with sips of water and with moderate thick bilious output from his gallbladder drain to relieve the gallbladder inflammation. he also auto anticoagulated himself, an inr rising above 5. in addition to the anemia, he also had leukopenia as well as leukocytosis. tachycardia went along with his atrial fibrillation. on the 1st, he was also noted to be febrile. the worsening clinical course including an increasing distended abdomen, hypotension down to the 70 systolic range, metabolic acidemia, decreasing white count which was worrisome for sepsis and the origin was thought to be in his abdomen. so in discussion with the family, intensive care unit team, general surgery took this patient to the operating room with the diagnosis of probably a necrotic left colon. the procedure was exploratory laparotomy, left colectomy, transverse colostomy, drainage of multiple intra-abdominal abscesses as well as assessing the cholecystostomy tube for the gallbladder. at surgery, it was confirmed that he had an open perforation with stool in his peritoneal cavity. the gallbladder appeared viable. multiple units of fresh-frozen plasma was given for his coagulopathy and all the abscesses were drained. at the end of the case, he had become anuric, again intubated, requiring hemodynamic instability on iv antibiotics requiring pressure support. renal consult was obtained suggested a continued tpn and to continue with volume resuscitation, who felt the oliguria was secondary to septic shock. continued to have respiratory distress and ventilatory dependence as well as dependence on total parenteral nutrition on pressors without any signs of improvement. continuing to be coagulopathic and family discussions with the surgical intensive care unit and the surgical staff took place, and ended up deciding to change the patient's status to comfort measures only. the pressors were weaned off. ventilatory support was continued, and he expired shortly thereafter in the surgical intensive care unit. discharge diagnoses: 1. hypertension. 2. cerebrovascular accident. 3. atherosclerosis. 4. ruptured abdominal aortic aneurysm. 5. status post repair of abdominal aortic aneurysm. 6. atrial fibrillation. 7. hypotension. 8. ventilatory dependence. 9. anemia. 10. hypercoagulable state. 11. leukocytosis followed by leukopenia. 12. metabolic acidosis. 13. congestive heart failure. 14. ards. 15. perforated left colon. 16. cecal peritonitis. 17. sepsis. 18. acalculous cholecystitis. 19. status post percutaneously drained gallbladder with a cholecystostomy tube. 20. acute renal failure. 21. repair of perforated left colon. 22. incision and drainage of multiple intra-abdominal abscesses. 23. left colectomy and transverse colostomy. 24. hemodynamic instability requiring pressors. 25. hypoxemia. 26. tachycardia associated with arrhythmia requiring amiodarone and intravenous antiarrhythmic. 27. electrolyte abnormalities. 28. malnutrition status post total parenteral nutrition. 29. electrolyte abnormalities that includes hypernatremia. discharge status: expired. this gentleman came in under dr. service, but was transferred to dr. service under his care on the general surgery service. , m.d. dictated by: medquist36 procedure: venous catheterization, not elsewhere classified continuous invasive mechanical ventilation for 96 consecutive hours or more parenteral infusion of concentrated nutritional substances insertion of endotracheal tube open and other left hemicolectomy other electric countershock of heart other (peripheral) vascular shunt or bypass colostomy, not otherwise specified resection of vessel with replacement, aorta, abdominal percutaneous aspiration of gallbladder diagnoses: subendocardial infarction, initial episode of care acute kidney failure, unspecified atrial fibrillation perforation of intestine systolic heart failure, unspecified abdominal aneurysm, ruptured hemoperitoneum (nontraumatic) septicemia due to gram-negative organism, unspecified 

Answer: The patient is high likely exposed to