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: code: full allergies: nkda pt is 76 year old male with h/o thoracic dissection s/p stent and abdominal aaa repair and htn. presented to ed one day after falling in local pharmacy, pt does not recall losing conciousness but was sure. in ed hypertensive, received iv medications with temporary effect, pt rebounded to >200 systolic. started on nitro gtt. head ct negative, cxr postoperative changes, low lung volumes, but no obvious infiltrate. sent to floor where he became short of breath and complained of difficulty breathing, abg acidotic, transferred to micu for possible intubation. upon arrival to micu pt on nrb mask with sats >95%, nbp showed htn, pt on nitro gtt. pt trailed on bipap with little effect, pt becoming aggitated, team decided to intubate for impending respiratory failure. pt intubated without complication by anesthesia with respiratory and icu resident and intern at bedside. pt arrived with piv x 2, team decided to insert central line due to lack of access. during procedure pt dropping bp to 70s, started on iv dopamine with good response. ett and line verified by cxr. sedated on propofol for aggitation and pt safety. wife in to see pt, talked to md regarding pt's condition and plan of care. procedure: venous catheterization, not elsewhere classified continuous invasive mechanical ventilation for 96 consecutive hours or more insertion of endotracheal tube enteral infusion of concentrated nutritional substances arterial catheterization closed [endoscopic] biopsy of bronchus diagnoses: congestive heart failure, unspecified acute kidney failure, unspecified chronic airway obstruction, not elsewhere classified chronic kidney disease, stage iii (moderate) acute respiratory failure retention of urine, unspecified hyperosmolality and/or hypernatremia hydronephrosis chronic diastolic heart failure hypertensive chronic kidney disease, malignant, with chronic kidney disease stage i through stage iv, or unspecified shock, unspecified 

Answer: The patient is high likely exposed to