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: chief complaint: back pain s/p trauma major surgical or invasive procedure: anterior vertebrectomy l1/ fusion t12-l2 posterior fusion t8-l3 history of present illness: s/p fall at work with severe l1 burst fracture and initial paraparesis which resolved with iv steroids. past medical history: non-contributory social history: works doing construction family history: non-contributory physical exam: this white male with severe back pain. strength intact in both lower extremeties but l1 dysesthesias present pertinent results: 10:04pm glucose-105 lactate-1.2 na+-142 k+-4.5 cl--103 tco2-25 10:04pm glucose-105 lactate-1.2 na+-142 k+-4.5 cl--103 tco2-25 09:50pm wbc-16.8* rbc-4.87 hgb-14.2 hct-42.1 mcv-86 mch-29.2 mchc-33.8 rdw-12.3 brief hospital course: patient was admitted to hospital on . he was brought to or on for anterior procedure. this was tolerated well. he was brought back to or on for posterior spinal fusion with instrumentation. he had acute blood loss anemia requiring transfusion of 2 units prbc's. he was begun with ambulation with a tlso. on he was ambulating independently without assistance. medications on admission: none discharge medications: oxycontin 20mg po tid/ oxycodone 5mg po q4 hours discharge disposition: home discharge diagnosis: l1 burst fracture discharge condition: stable discharge instructions: keep incisions clean dry and inatct. use tlso when oob. followup instructions: follow-up in dr. office in 2 weeks. procedure: dorsal and dorsolumbar fusion of the anterior column, anterior technique excision of intervertebral disc excision of bone for graft, other bones transfusion of packed cells dorsal and dorsolumbar fusion of the posterior column, posterior technique transfusion of other serum other partial ostectomy, other bones transfusion of platelets insertion of interbody spinal fusion device fusion or refusion of 4-8 vertebrae diagnoses: acute posthemorrhagic anemia asthma, unspecified type, unspecified closed fracture of dorsal [thoracic] vertebra without mention of spinal cord injury closed fracture of lumbar vertebra without mention of spinal cord injury other accidental fall from one level to another 

Answer: The patient is high likely exposed to