Facebook Pages, the “Disneyland” Measles Outbreak, and Promotion of Vaccine Refusal as a Civil Right, 2009–2019

AJPH

We categorized 204 Facebook pages expressing vaccine opposition, extracting public posts through November 20, 2019. We analyzed posts from October 2009 through October 2019 to examine if pages’ content was coalescing.

David A. Broniatowski, Amelia M. Jamison, Neil F. Johnson, Nicolás Velasquez, Rhys Leahy, Nicholas Johnson Restrepo, Mark Dredze, Sandra C. Quinn

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