This is comparable to the rate of congenital rubella infections in a study by Mirambo et al., where 52.7% of babies born to IgM-positive mothers had congenital rubella infections at birth.36 One in 10 of the babies born to women with rubella infection were likely to come down with congenital rubella syndrome in a study done in Tanzania.36 Fourteen 14.3% of Rubella IgM-positive neonates born to Rubella IgM-positive mothers had occipitofrontal circumference OFC of less than the 10th percentile for gestational age. This evidence concerns the gene CD40LG and congenital rubella syndrome.