This problem has recently become a serious public health problem, as the number of vaccine-preventable diseases in the community has increased for fear of a “link” between vaccination and autism. Vaccines are not related to autism: a meta-analysis based on case studies and cohorts. There has been much discussion of the possible relationship between childhood immunization and subsequent autism development. Five cohort studies involving 1,256,407 children and five case-control studies involving 9,920 children were included in this analysis. Over 500 pages of alternatives and natural medicine information.