NEW ProCon.org Website! – Should any vaccines be required for children? – All 50 states require vaccinations for children entering public schools although 48 states allow exemptions for religious reasons and 20 for philosophical reasons. While proponents argue that vaccines save lives, prevent epidemics, and reduce harm from illness, opponents counter that vaccinations should not be required because they may do more harm (cause illness, reduce immunity, etc.) than good. ProCon.org’s newest website explores the pros and cons of the debate surrounding vaccination.