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: sulfa pmhx: cad s/p ptca lad + rca ' ?h/o mi htn elevated cholesterol h/o paf, on coumadin hpi: admitted to the ccu. ct surgery consulted + tee showed good lv function, and showed the aortic dissection. mri showed descending aortic dissection. no surgerical intervention, to treat dissection medically. placed on iv nipride and iv labetolol for bp control. inr 2.51 on admission - given total of 7u ffp and 2 doses of s/c vit k. review of systems: cardiovascular: pt was in afib 80-100s overnite, but spontaneously converted back to sr in the middle of the nite. today sr 60s, no ectopy noted. weaned off nipride and labetolol drips overnite. started on labetolol 200mg po bid. current sbp 100-130 today. goal hr 60 w/ sbp <140. no c/o chest pain or discomfort. inr 1.4. pneumo-boots on bilat. r radial aline. multiple peripheral heplocks. neuro: alert and oriented. taking naps today. mae. no c/o. pleasant and cooperative. resp: ls coarse bilat. regular breathing. no c/o sob. sats on room air 88%. had 40% cool neb fm changed to 5l n/c for sats 92-97%. cp done, deep breathing and coughing exercises done. congested cough, productive small amts tan sputum. gi/gu: foley patent, draining 20-30cc/hr. house staff aware. pt started on clear fluids today, advance as tolerated. noting increased u/o this afternoon after pt taking po fluids. abd distended, soft. +bs. no bm. ngt removed this morning. id: afebrile today. no abx. pt febrile overnite last nite. ?transfusion reaction overnite 1hr after recieving 1u ffp (rigors, temp 103.8, ^rr -cxr showed failure - tx w/ lasix, benedryl, demerol, tylenol. procedure: diagnostic ultrasound of heart other esophagoscopy diagnoses: pure hypercholesterolemia congestive heart failure, unspecified unspecified essential hypertension atrial fibrillation percutaneous transluminal coronary angioplasty status old myocardial infarction dissection of aorta, abdominal 

Answer: The patient is high likely exposed to