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: patient is a 37-year-old gentleman with a history of hiv and hepatitis c, had a sudden onset of severe headache at 11:30 on . roommate states that he was confused and would not answer questions. he had no headache during the day and had just returned from playing pool. past medical history: 1. lymphoma nonmetastatic. 2. hepatitis c. 3. hiv. past surgical history: lymph node removal. medications on admission: 1. interferon. 2. ribavirin. 3. epivir. 4. bactrim. 5. celexa. 6. videx. allergies: no known allergies. physical examination: on physical exam, temperature was 97.4, blood pressure 145/102, heart rate was 79, respiratory rate was 21, and sats were 93% on room air. heent: pupils are equal, round, and reactive to light 5 down to 4.5 mm. eoms were full. neck was supple. lungs were clear bilaterally. cardiac: regular, rate, and rhythm, s1, s2, no murmurs, rubs, or gallops. abdomen is soft, nontender, nondistended, positive bowel sounds. extremities no edema. neurologically, is awake, alert, and oriented times three. slow to answer questions. complaining of a throbbing headache. moving all extremities with good strength, no drift. his muscle strength is in all muscle groups. he had no neck pain. he was admitted to the icu with q one hour neurologic checks. his blood pressure was kept under 140 with iv nipride. he was loaded with dilantin. started on nimodipine, and was taken to the angio suite on that morning, which showed an acom aneurysm, which he had coiled without interprocedure complication. postprocedure, he had a ventriculostomy placed for hydrocephalus and a iii cranial nerve palsy, which he developed suddenly during a postprocedure cat scan. the cranial nerve palsy resolved once the vent drain was placed, and he remained in the icu being monitored for vasospasm for two weeks' time, where he remained neurologically stable, awake, alert, and oriented times three, moving all extremities with no drift. third nerve palsy was on the left and resolved with vent drain placement. on , he spiked a temperature to 102. csf was sent which showed 2+ pmns, no organisms. he had a chest x-ray which was negative. blood cultures had gram-positive cocci in pairs. he had been getting covered with levaquin and kefzol that was changed to vancomycin on . he had difficulty with hyponatremia and was on a 3% saline drip for several days. his hyponatremia did eventually resolve, and he was just receiving salt tablets. on , vent drain was raised to 20 cm above the tragus, however, the patient had severe headache and hypertension. the patient did not tolerate the vent drain, and was then put back down to 14 cm above the tragus. the patient's vent drain was finally d/c'd on and a repeat head ct the following morning showed no evidence of hydrocephalus. the patient, however, did develop a spike in fever, and csf was sent, which came back with gram-positive cocci positive. the patient was then started on iv vancomycin for supposed meningitis. id was consulted and he continued on iv vancomycin for a total of six week course. he was transferred out of the unit on and he has remained stable on the floor awake, alert, and oriented times three moving all extremities with good strength and no drift. his meningitis is slowly resolving. he had a lumbar puncture done on which showed no evidence of organisms or any growth of any organisms in his csf culture. he will finish a total of 10 days post the second last lp, and follow up with dr. in two weeks' time. condition on discharge: his condition was stable at the time of discharge. discharge medications: 1. colace 100 mg p.o. b.i.d. 2. lamivudine 300 mg p.o. q.d. 3. vancomycin 1500 mg iv q.12h. 4. promethazine 12.5-25 mg iv q.6h. prn for nausea. 5. nystatin oral suspension 5 cc p.o. q.i.d. 6. hydromorphone 2-4 mg p.o. q.4h. prn. 7. ascorbic acid 500 mg p.o. q.d. 8. multivitamin one p.o. q.d. 9. nimodipine 30 mg p.o. q.4h. 10. didanosine ec 400 mg p.o. q.p.m. 11. pantoprazole 40 mg p.o. q.24h. 12. citalopram hydrobromide 20 mg p.o. q.d. 13. lopinavir three caps p.o. b.i.d. 14. heparin 5,000 units subq q.12h. 15. tylenol 650 p.o. q.4h. prn. condition on discharge: patient's condition is stable at the time of discharge. he will need to followup with his own id doctor in two weeks after iv antibiotics are finished and with dr. in two weeks. , m.d. dictated by: medquist36 procedure: venous catheterization, not elsewhere classified spinal tap incision of lung intravascular imaging of intrathoracic vessels arterial catheterization endovascular (total) embolization or occlusion of head and neck vessels diagnoses: obstructive hydrocephalus hyposmolality and/or hyponatremia subarachnoid hemorrhage human immunodeficiency virus [hiv] disease other malignant lymphomas, unspecified site, extranodal and solid organ sites alkalosis acute hepatitis c without mention of hepatic coma third or oculomotor nerve palsy, total meningitis, unspecified 

Answer: The patient is high likely exposed to