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: the patient is a 45-year-old male status post aortic valve replacement with tissue, ascending aortic repair on , who is discharged recently on . his wife reports that he fell down one half flight of stairs last evening and was ataxic and had hallucinations and altered vision supposedly reporting misjudging, location of objects. she does not report any notable head trauma and denies any alcohol usage. the patient also denies pain at this time. physical examination: neurologically cranial nerves ii through xii were grossly intact. extraocular muscles intact. the patient was noted to have a slightly ataxic gait with sensation intact throughout and slightly disconjugate gaze. he was normocephalic, atraumatic with pupils equal, round and reactive to light. oropharynx clear. neck was supple with no lymphadenopathy or masses. cardiovascular: without murmurs, rubs or gallops. normal s1 and s2. lungs: clear to auscultation bilaterally without wheezes, rales or rhonchi. extremities: no edema and the abdomen was nondistended, non- tender and soft throughout. hospital course: this 45-year-old male status post aortic valve replacement with tissue and ascending aortic repair was admitted to the cardiac surgery service for further work up. neurology consult was pursued and an mri of the brain was performed that revealed no signs of the infarct or hemorrhage. ct scan of the head was then performed that also did not reveal any significant findings or sign of infarct. the patient was continued on labetalol for blood pressure control and his presentation began to improve. an eeg was also performed at that time but did not reveal any significant results. psychiatry was also consulted at this time due to the lack of neurologic findings. the suggestion was to use seroquel p.r.n. for agitation, however the patient's agitation also notably improved in that it was deemed that this was not required at this time. neurology continued to follow the patient throughout his stay in the hospital and they cleared the patient to be discharged to home and did not require further intervention or study. psychiatry also followed the patient throughout his stay and continues to suggest seroquel as needed for agitation. the patient again was noted to have improved dramatically in this regard. the patient also was reported on hospital day 3 to have slight finger to nose dysmetria. on repeated examination this was noted to have improved and on the day of discharge was noted to be normal. the patient stated that he was feeling significantly better and was eager for discharge to home. discharge instructions: the patient will be discharged to room if having worsening pains, fevers, chills, nausea, vomiting, or if there are any questions or concerns. the patient to take all medications as directed and adhere to followup plans. final diagnosis: post aortic valve replacement, mitral valve prolapse. mental status changes. follow up: the patient to follow up with dr. in 2 weeks and to call to schedule an appointment at . discharge medications: 1. aspirin 325 mg po q d. 2. labetalol 200 mg po b.i.d 3. acetaminophen 325 mg po q 4 to 6 hours as needed for pain. disposition: the patient will be discharged to home. , m.d. dictated by: medquist36 d: 13:54:57 t: 15:09:40 job#: procedure: extracorporeal circulation auxiliary to open heart surgery open and other replacement of aortic valve with tissue graft resection of vessel with replacement, thoracic vessels diagnoses: thoracic aneurysm without mention of rupture aortic valve disorders iatrogenic pneumothorax 

Answer: The patient is high likely exposed to