[Answered]: A 29 year old G2P1 woman presented in labor at…

A 29 year old G2P1 woman presented in labor at 39+2 weeks gestational age. Her pregnancy had been previously uncomplicated. Prenatal infectious disease testing showed that she was negative for HIV and Hepatitis C, but that she was positive for Group B Streptococcus. No test results were available for rubella, VZV, toxoplasmosis, or syphilis. A term male infant was born shortly afterwards by spontaneous vaginal delivery; the mother received less than 4 hours of antibiotics. The baby was noted to be covered in petechiae, and in a moderate amount of respiratory distress. A CBC showed thrombocytopenia to 23 K/cmm. The baby was transported emergently to the neonatal intensive care unit, where platelet transfusions were given. Blood cultures were drawn. The baby was started empirically on ampicillin/gentamycin, and the following day, once platelet counts were improved, a lumbar puncture was performed. The cell counts in the CSF were unremarkable. A cranial ultrasound showed scattered bilateral parenchymal calcifications, mineralized vasculature of the lenticulostriate arteries, and a subependymal cyst. Bacterial Culture and Smear, CSF: No neutrophils, no bacteria. No growth. CSF Viral PCR: Negative for HSV and VZV. The placenta was not sent for pathologic examination. Cranial ultrasound demonstrating scattered parenchymal calcifications. What virus would you suspect in this case?