Enlarge / Actress Jessica Biel supporting prominent anti-vaxxer Robert F. Kennedy Jr. in an effort to protect non-medical vaccine exemptions. (credit: Instragram) Anti-vaccine advocates received a blow in New York Thursday as state lawmakers banned non-medical exemptions based on religious beliefs—and there may be more blows coming. Also on Thursday, the American Medical Association adopted a new policy to step up its fight against such non-medical exemptions.