Overview

• The U.S. has confirmed 800 measles cases across 27 states in 2025, surpassing the total of 285 cases reported in all of 2024.
• Louisiana, Missouri, and Virginia each reported their first measles cases of the year over the weekend, all tied to international travel.
• Texas accounts for 597 of the total cases, with Gaines County at the center of the outbreak; two unvaccinated school-aged children in Texas have died from the disease.
• Health officials emphasize vaccination as the most effective prevention method, noting the majority of cases involve unvaccinated or vaccination-status-unknown individuals.
• The CDC has limited its public communication to weekly updates and a prior doctors’ alert, despite this being the largest U.S. measles outbreak in six years.