Measles Vaccination Coverage After a Postelimination Outbreak

Did measles vaccination coverage in an underimmunized central Ohio primary care network change at 12 and 20 months after a large postelimination outbreak?In this cross-sectional study of 149 092 children, timely measles-mumps-rubella (MMR) vaccine dose 1 coverage did not change; however, timely MMR vaccine dose 2 and overall coverage by 84 months of age increased slightly. Children of Somali descent had persistently lower timely MMR vaccine dose 1 coverage, with a widening gap.Persistent, systemwide MMR immunity gaps in an extensive pediatric network suggest the need for targeted and sustained public health strategies to prevent future outbreaks and protect a quarter-century of US measles elimination.

Corresponding Author: Rosemary A. Martoma, MD, MBChB, Division of Primary Care Pediatrics, Nationwide Children’s Hospital, 380 Butterfly Garden Dr, Columbus, OH 43205 (rose@kidsmates.org).

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