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: 65-year-old gentleman with past medical history significant for neck cancer, admitted to - for cardiac catheterization following arrest. the patient originally was admitted to following an unwitnessed arrest. the patient's wife reports that patient got up to go to the bathroom. he did not return and his wife subsequently found him down unresponsive and approximately five minutes later ems found patient to be in asystole. he was resuscitated following epinephrine, atropine and lidocaine. he also got an aspirin and heparin. the rhythm strip showed him to be in the rhythm of atrial fibrillation with a blood pressure initially of 25/palp and then 60/palp. the patient was then taken to . upon arrival at an ekg showed inferolateral st depression. he was then transferred to - for cardiac catheterization. past medical history: neck cancer, status post dissection in and status post chemotherapy and radiation. medications: no home medications. medications on transfer: heparin, lidocaine. allergies: unknown social history: married. tobacco use 1?????? packs per day. physical examination: temperature 92.4??????, heart rate 95, blood pressure 131/86, respirations - intubated, on ventilator. general: intubated and sedated, on vent. heent: pupils dilated and non-reactive to light. cardiovascular: regular rate, no murmurs, rubs or gallops. lungs: clear to auscultation anteriorly, right breath sounds slightly decreased as compared to the left. abdomen: decreased bowel sounds. extremities: pulses intact in extremities times four. neurological: pupils fixed and dilated, no corneal reflexes, no gag reflexes. no response to pain or stimuli. areflexic. does not withdraw extremities to pain. laboratory data: on admission, white count 7.8, hematocrit 35.7. sodium 138, potassium 4.3, chloride 105, bicarbonate 14, bun 7, creatinine 1.2, glucose 152. electrocardiogram - sinus tachycardia with inferior st depression at approximately 2 mm. normal axis. abg 6.97, 64, 52 on 100% fio2. hospital course: 1. cardiovascular. patient admitted following asystolic arrest with prolonged down time. there is significant concern for patient's neurologic status given his neurologic exam and his ph of 6.97 at admission. initially cardiac catheterization was held until a further determination of his prognosis and likelihood of recovery could be determined. his arrest was thought to be likely ischemic with his lateral st depressions versus primary arrhythmia. the patient was monitored. he had an echo which showed an ejection fraction of 50% and significant valvular disease. the patient was monitored supportively and further cardiac intervention was not undertaken given his neurologic status. 2. neurology. patient admitted unresponsive with no brain stem functions. however, he did not meet the criteria for brain death. patient continued to decline neurologically and began to develop wide temperature fluctuations and autonomic dysfunction. patient was thought to have hypothalamic dysfunction due to his severe anoxic brain injury. neurology was consulted and patient was thought to have a very poor prognosis, supportively, until he suffered the cardiorespiratory arrest. 3. severe acidosis. patient admitted with an ph of 6.97. this was thought to represent severe lactic acidosis in the setting of prolonged hypoxia and asystolic arrest. he was maintained supportively. disposition: patient transferred to the idmc following the asystolic arrest with prolonged down time in the field. patient was severely acidotic and had minimal intact neurologic function. his status rapidly declined following admission to the ccu and he developed severe autonomic dysfunction thought to be due to his anoxic brain injury. patient then suffered a cardiopulmonary arrest. , m.d. dictated by: medquist36 procedure: continuous invasive mechanical ventilation for less than 96 consecutive hours insertion of endotracheal tube diagnoses: paroxysmal ventricular tachycardia acute myocardial infarction of inferolateral wall, initial episode of care 

Answer: The patient is high likely exposed to