Vaccine skepticism has taken off in other insular communities as well such as the close-knit Somalian-American community of Minnesota where measles cases have skyrocketed due to the false claim it can cause autism.
The rumor had its roots with Andrew Wakefield, a former British doctor whose now debunked 1998 research paper drew a connection between the MMR vaccine and the developmental disability. His papers have since been withdrawn and retracted and his medical license revoked.
Tzvi Joffre and Gil Hoffman contributed to this report.