Texas health officials have officially declared the end of a measles outbreak in West Texas that began in late January 2025. The outbreak, which was the largest in the United States in more than two decades, resulted in 762 confirmed cases and caused two child fatalities. The Texas Department of State Health Services reported no new infections since July 1, surpassing the 42-day threshold used by public health authorities to declare an outbreak over. During the outbreak, approximately 100 people were hospitalized. Despite the declaration, officials caution that measles remains a threat due to ongoing outbreaks in North America, including Canada and Mexico, and anticipate that additional cases may still be diagnosed in Texas this year. The outbreak originated in an undervaccinated community in West Texas and contributed to the highest number of measles infections in the U.S. in 30 years.