Measles Outbreak in Mexico: Cases Surge, Vaccination Efforts Intensify

Mexico is facing a significant measles outbreak, with confirmed cases exceeding 10,800 since January 2025, and a rising death toll reaching 31 as of February 19, 2026. This surge has placed Mexico as one of the epicenters of the measles outbreak in the Americas, surpassing the United States, which has reported over 3,190 cases .

Rising Cases and Impacted Populations

The majority of measles cases in Mexico are occurring among children. Specifically, those aged 1 to 4 years account for 1,456 cases, closely followed by children aged 5 to 9 years with 1,221 cases. The states most affected by the outbreak are Jalisco, Chihuahua, and Chiapas .

Chihuahua has recorded the highest number of deaths with 21 fatalities, contributing significantly to the national death toll of 31 .

Government Response and Vaccination Campaigns

In response to the escalating outbreak, the Mexican government is urging unvaccinated individuals to get vaccinated. President Claudia Sheinbaum stated that the government has over 27 million vaccines available and is actively distributing them across the country, with a particular focus on vaccinating children and individuals aged 13 to 49 in certain states .

Several states are implementing preventative measures. Mexico State has announced heightened health screening at schools and recommends face mask use for students and staff. Jalisco, the epicenter of the outbreak, has mandated mask use in schools across Guadalajara .

The National Electoral Institute (INE) has also taken action, reporting a confirmed case of measles among its workers and reinforcing prevention measures, including a temporary shift to remote operate for non-essential personnel and an intense vaccination day for eligible employees .

Risk of Losing Elimination Status

Mexico is at risk of losing its measles elimination status, which it achieved in 1996. If continuous measles transmission is confirmed for 12 months, the Pan American Health Organization (PAHO) may declare measles endemic in the country . The majority of confirmed cases have occurred in unvaccinated individuals, with approximately 90% of cases occurring among those not inoculated .

Key Takeaways

• Mexico is experiencing a significant measles outbreak with over 10,800 confirmed cases and 31 deaths.
• Children aged 1-9 are the most affected population group.
• The states of Jalisco, Chihuahua, and Chiapas are experiencing the highest number of cases.
• The Mexican government is actively distributing vaccines and implementing preventative measures.
• Mexico risks losing its measles elimination status if the outbreak continues.