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Research Letter
May 2015

Substandard Vaccination Compliance and the 2015 Measles Outbreak

Author Affiliations
  • 1Engineering Systems Division, Massachusetts Institute of Technology, Cambridge
  • 2Computational Epidemiology Group, Children’s Hospital Informatics Program, Division of Emergency Medicine, Boston Children’s Hospital, Boston, Massachusetts
  • 3Department of Pediatrics, Harvard Medical School, Boston, Massachusetts
JAMA Pediatr. 2015;169(5):494-495. doi:10.1001/jamapediatrics.2015.0384

The ongoing measles outbreak linked to the Disneyland Resort in Anaheim, California, shines a glaring spotlight on our nation’s growing antivaccination movement and the prevalence of vaccination-hesitant parents. Although the index case has not yet been identified, the outbreak likely started sometime between December 17 and 20, 2014.1,2 Rapid growth of cases across the United States indicates that a substantial percentage of the exposed population may be susceptible to infection due to lack of, or incomplete, vaccination. Herein, we attempt to analyze existing, publicly available outbreak data to assess the potential role of suboptimal vaccination coverage in the population.

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