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: maternal hx - 39 year old g6p4->5 woman with unremarkable pmhx, family hx and social history. prenatal screens were as folows: a positive, iat negative, hbsag negative, rpr non-reactive, rubella immune, gbs positive. antenatal hx - for ega 39 weeks at delivery this morning at 0605. pregnancy was uncomplicated. underwent svd without anesthesia. there was no intrapartum fever or other clinical evidence of chorioamnionitis. intrapartum antibiotic therapy was initiated 2 hours prior to delivery. rom occurred at delivery and yielded clear amniotic fluid. neonatal course - infant required only bulb suctioning and tactile stim from delivery room staff. apgars were 9 at one minute and 9 at five minutes. infant has been asymptomatic with otherwise non-contributory ros. pe very well-appearing infant in no distress bw 3530g hr 136 rr 40 t 98 bp 65/23 (38) sao2 100% in room air heent afsf; non-dysmorphic; palate intact; neck/mouth normal; normocephalic; no nasal flaring chest no retractions; good bs bilat; no adventitious sounds cvs well-perfused; rrr; femoral pulses normal; s1s2 normal; no murmur abd soft, non-distended; no organomegaly; no masses; bs active; anus patent; umbilical remnant unremarkanle gu normal phallus; testes descended bilaterally cns active, alert, resp to stim; tone normal and symm; mae symm; suck/root/gag intact; facies symm integ normal msk normal spine/limbs/hips/clavicles inv d-stick 59 impression full term infant with 1. moderately elevated risk of sepsis, based on maternal gbs colonization incompletely attenuated with intrapartum antibacterial prophylaxis < 4 hours prior to delivery plan -cbc and blood culture will be drawn. in light of absence of other sepsis risk factors and the excellent clinical appearance, we will defer empirical antibiotic coverage unless wbc is abnormal, culture is positive or signs/symptoms consistent with infection are noted -given that he is asymptomatic, we will transfer to the regular nursery for ongoing observation and otherwise routine neonatal care -parents updated by dr. procedure: prophylactic administration of vaccine against other diseases diagnoses: need for prophylactic vaccination and inoculation against viral hepatitis observation for suspected infectious condition single liveborn, born in hospital, delivered without mention of cesarean section 

Answer: The patient is high likely exposed to