If mother is vaccinated for rubella in preconception period. Chances of rubella infection in the child is after how much period after bih -

Ans. is 'c' i.e., 6 months Maternal rubella antibodies (IgG) are transferred from vaccinated/immune mother to child during fetal life. These antibodies last for 6 months and provide protection. After this period, the infant is susceptible to rubella.