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: the infant is the former 2.205 kg triplet number 1 born to a 36-year-old, gravida 2, para 1 now 3, a positive female, whose remaining prenatal screens were noncontributory. the mother has a history of infertility and myomectomy in for fibroids, history of a positive ppd a number of years ago with a negative chest x- ray. this pregnancy is notable for ivf triplets, dichorionic, triamniotic, preterm labor at 30 weeks which was controlled with p.o. terbutaline. she presented on the day of delivery in the obstetrical office at with 3 plus proteinuria. due to the proteinuria, the decision was made to deliver the infants by cesarean section at 34 and 3/7 weeks. this triplet's apgar scores were 8 and 9, and the physical examination was unremarkable except for jelly cyst on the most proximal portion of the umbilical cord with no other defect noted. the cord was clamped proximal to the fist and cut in the delivery room. on admission, the baby weighed 2.205 kg, length 44 cm, head circumference 31 cm, all appropriate for gestational age. hospital course: respiratory: the infant remained in room air throughout her hospital course. there were no episodes of apnea or bradycardia of prematurity. cardiac: there were no cardiac issues. the infant had normal blood pressures throughout the hospital course. infectious disease: the infant was initially placed on ampicillin and gentamicin for a 48-hour rule out. antibiotics were discontinued with negative cultures. on , the patient infant passed a maroon colored stool which was guaiac positive. abdominal film obtained was entirely normal. follow-up stools were negative for heme, and it was thought that this was possibly aspirated maternal blood. hematologic: initial hematocrit of this infant was 55 post the episode noted above. hematocrit was repeated a day later and was 53. the latest bilirubin was 7.1/0.5 on the day of discharge. the infant had insignificantly elevated bilirubin for treatment. feeding an nutrition: at the time of discharge, the infant weighed 2140 g, was feeding ad lib demand of neosure or mother's milk as available. the mother intends to breast feed as milk comes in and for now will be supplementing with formula. hearing screen: performed and was passed. hepatitis b immunization: given on . discharge instructions: the patient is to be discharged home today, , with a vna visit within 48 hours of discharge. a follow-up appointment will be made by the mother for the infant at medical center, , with dr. , for within seven days of discharge. , procedure: prophylactic administration of vaccine against other diseases diagnoses: need for prophylactic vaccination and inoculation against viral hepatitis observation for suspected infectious condition other preterm infants, 2,000-2,499 grams 33-34 completed weeks of gestation other multiple birth (three or more), mates all liveborn, born in hospital, delivered by cesarean section 

Answer: The patient is high likely exposed to