U.S. measles cases reach highest level in over 30 years, CDC reports

Wednesday, December 31, 2025 -The United States is experiencing a surge in measles cases, reaching the highest level in more than three decades, according to the Centers for Disease Control and Prevention (CDC). 

Health officials report that outbreaks are concentrated in several states, largely affecting unvaccinated communities, and are raising concerns about the potential for wider spread. The resurgence underscores the critical importance of vaccination and public health awareness.

Experts emphasize that measles is highly contagious and can lead to serious complications, particularly in young children and immunocompromised individuals. 

The CDC is urging parents and guardians to ensure that all children are fully vaccinated with the MMR (measles, mumps, rubella) vaccine and for adults to confirm their immunity status. Rapid identification and containment of cases remain key to preventing further outbreaks.

Public health authorities are stepping up outreach efforts, including targeted education campaigns and community vaccination drives. Officials stress that immediate action is essential to curb the outbreak and protect vulnerable populations. The surge serves as a stark reminder of the ongoing consequences of declining vaccination rates and the urgent need for sustained public health measures.