Since infants and young children are very vulnerable and lack independence, healthy physical development is dependent on protecting them from outside harms. Vaccines protect not just the child being vaccinated but also other children who may not be vaccinated. Some children cannot receive vaccines due to health conditions, such as child with allergies or a deficient immune system. These children are at risk for catching devastating illnesses when they come in contact with unvaccinated children. When parents have their children vaccinated it is good for the health of both the vaccinated children and other children in the