Paediatricsmiddle twist
A girl born at 38 weeks weighs 2.2 kg and her head circumference is well below the third centile. Scattered purple-red spots over the trunk do not blanch, and the palms and soles are clear. The liver and spleen are both palpable and the platelet count is 62 x 10^9/L (reference 150 to 400). There is no murmur, and ophthalmoscopy shows normal lenses and retinae. Cranial ultrasound shows bright echoes lining the walls of the lateral ventricles. The newborn hearing screen has been failed in both ears. Which one of the following congenital infections best explains these findings?