Review Question - QID 214731

A 4-day-old boy is evaluated in the neonatal intensive care unit. He was born to a 34-year-old woman (gravida 3 para 1) at 32 weeks' gestation. At birth, he was noted to have multiple non-blanchable, non-palpable, red macules covering his trunk and extremities. He also passed a hearing screening. His temperature is 98.6°F (37.0°C), blood pressure is 75/45 mmHg, pulse is 130/min, and respirations are 40/min. Physical examination reveals bilateral chorioretinitis. Upon hearing a loud noise, he first abducts his upper extremities and extends his arms, fingers, neck, and spine; then, he adducts his arms and brings his hands to the front of his body. A head CT is shown in Figure A. Which of the following congenital infections is the most likely cause of these findings?