Immunize dubious infectious disease are accountable for significant maternal, neonatal and young infant despair and loss of life. While there is emerging confirmation as well as theoretical thought indicating that certain. Vaccine Sarerisk free for pregnant women and fetuses, policy– formulation is difficult because of behold potential danger to the fetus. The immature adaptive immune system of neonate impulsive infant build them particularly vulnerable despair and loss of life due to infection. Vaccinated pregnant women can defend the fetus. It can also directly defend the fetus via specific transplant from the mother in time of pregnancy. Keywords :Theoretical; Policy-formulation; Vulnerable; Transplant.