About The Study: In this repeated cross-sectional study of 149,000 children in a large central Ohio primary care network during the 20 months after outbreak onset, all measures of measles-mumps-rubella (MMR) coverage remained well below the 93% herd immunity threshold. These persistent, population-wide immunity gaps suggest the need for sustained, equity-focused public health strategies to maintain measles elimination.
Corresponding Author: To contact the corresponding author, Rosemary A. Martoma, MD, MBChB, email rose@kidsmates.org .
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(doi:10.1001/jamanetworkopen.2025.33732)
Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.
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