So, what happened was anti-vax groups spreading their message managed to tap into the community. Flyers in Hebrew, robo calls similar to ones already used to communicate within the community, etc.

You have an insular community that isn't generally quick to trust outside authority figures, so misinformation is hard to refute and quick to spread once it takes root within the community.

There really isn't a religious component to it other than the religion is what has influenced their culture to be what it is.

Edit; You can listen more here.

https://nyti.ms/2W8mmkE