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: briefly, the patient is a 39 year old male with no significant past medical history who was admitted on , in respiratory distress, bacteremia, septic shock. the patient was found to have necrotizing streptococcal necrotizing pneumonia involving the entire right lung. he was intubated for hypoxic respiratory failure. he was begun on intravenous penicillin on . hospital course by system: 1. pulmonary: the patient was successfully extubated on . a follow-up chest x-ray and ct scan of the chest on , showed a decrease in the extent of the consolidation and cavitation within the right lung. it also revealed minimally increased size of the large right pleural effusion with a subpulmonic component. a small left pleural effusion had remained unchanged. the patient was continued on chest physical therapy. the patient had oxygen saturations in the range of 99 to 100 on room air by the time of discharge. due to the improvement in the patient's clinical picture, a pleural paracentesis was not performed. 2. infectious disease: the patient was started on intravenous penicillin for his pneumonia on . initially, the patient had four out of four blood cultures which grew pneumococcus sensitive to ceftriaxone and penicillin. the patient was initially placed on ceftriaxone but this was changed to intravenous penicillin. the patient was also on vancomycin which was also discontinued at one point. the patient's white blood cell count continued to improve. repeat blood cultures were negative for infection. a urinalysis and urine culture was also obtained which was negative for any evidence of infection. the patient was discharged home on a continuous infusion pump of intravenous penicillin to be completed on . 3. fluids, electrolytes and nutrition / gastrointestinal: the patient's diet was slowly advanced. he initially failed a speech and swallow study on . a video swallow study on confirmed that he was able to tolerate nectar thickened p.o. liquids and regular p.o. solids. a follow-up bedside swallow study was within normal limits and the patient was advanced to regular clear fluids and solids. in addition, hepatitis panel was drawn due to the elevated liver function tests. this was negative for any evidence of hepatitis. his liver function tests on repeat had declined. the patient also developed watery stools while in-house. a clostridium difficile assay was negative. the patient's electrolytes were repleted on an as needed basis. 4. endocrine: a tsh was found to be within normal limits for this patient. in addition, a testosterone was drawn which was low. the patient's blood sugars remained within normal limits. the patient was maintained on folic acid and thiamine for nutritional supplementation. by the time of discharge, he was tolerating a regular diet. 5. neurology: the patient had experienced acute mental status change and was found to be delirious prior to intubation on the evening of . he was given haldol p.r.n. and fentanyl was decreased. he eventually resumed to his baseline mental status. 6. other: the patient was evaluated by physical therapy and found to be adequate for discharge home without the need for extended rehabilitation. discharge status: home with visiting nurse assistance. condition on discharge: good. discharge diagnoses: 1. pneumococcal necrotizing pneumonia. 2. bacteremia. 3. septic shock. discharge instructions: 1. recommended follow-up with neuro-ophthalmology, dr. tartan in four to six weeks. 2. to follow-up with dr. at , the patient's primary care physician, one to two weeks. discharge medications: 1. folic acid 1 mg p.o. q. day. 2. thiamine 100 mg op q. day. 3. penicillin g intravenous 3,000,000 units q. four hours through . 4. albuterol 90 micrograms one to two puffs q. six hours p.r.n. , m.d. dictated by: medquist36 procedure: venous catheterization, not elsewhere classified venous catheterization, not elsewhere classified continuous invasive mechanical ventilation for 96 consecutive hours or more spinal tap incision of lung insertion of endotracheal tube enteral infusion of concentrated nutritional substances arterial catheterization closed [endoscopic] biopsy of bronchus transfusion of packed cells diagnoses: acidosis acute kidney failure, unspecified hyposmolality and/or hyponatremia acute respiratory failure septic shock abscess of lung pneumococcal septicemia [streptococcus pneumoniae septicemia] pneumococcal pneumonia [streptococcus pneumoniae pneumonia] 

Answer: The patient is high likely exposed to