> one unvaccinated child is a risk to a school full of vaccinated children? No. That child is at risk from the vaccinated children. The vaccinated children c

> one unvaccinated child is a risk to a school full of vaccinated children? No. That child is at risk from the vaccinated children. The vaccinated children can still carry the virus but it may not have much of an effect on them. It will, however, have full effect on the unvaccinated child, which can then infect those who are too weak to get vaccines, such as elderly and the very young.