Resurgence of measles in the United States: Examining the outbreak, vaccine hesitancy, and future directions

Abstract

The United States is experiencing a resurgence of measles, a highly contagious disease previously declared eliminated in 2000. This article examines the current trends of this resurgence, focusing on the increasing number of cases and outbreaks, the factors contributing to low vaccination rates, and the critical role of vaccine hesitancy. Data from the Centers for Disease Control and Prevention (CDC) as of May 15, 2025, are presented, highlighting the significant increase in measles activity and the concentration of cases within outbreaks. The analysis explores the epidemiological characteristics of these outbreaks, including severity and transmission dynamics, and examines the decline in national MMR vaccine coverage. Finally, the article discusses evidence-based strategies to enhance vaccine accessibility, combat misinformation, and improve outbreak response, emphasizing the urgent need for a coordinated public health approach to mitigate future outbreaks and protect vulnerable populations.