Summary of Research: A new study shows that numerous states and large metropolitan centers have seen an uptick in the number of nonmedical exemptions (NMEs) from childhood vaccinations granted. The study, published in PLOS Medicine,(journals.plos.org) found that in the past decade, the number of philosophical exemptions to vaccination has increased in two-thirds of the states that allow such exemptions.
Primary Research: Olive JK, Hotez PJ, Damania A, Nolan MS (2018) The state of the antivaccine movement in the United States: A focused examination of nonmedical exemptions in states and counties. PLOS Medicine 15(7): e1002616. https://doi.org/10.1371/journal.pmed.1002616