The Mexican Secretary of Health has reported that seven states are currently the most affected by a measles outbreak, which is concentrated in regions with higher incidence rates. Secretary David Kershenobich noted that these areas, with a rate of over one case per 100,000 inhabitants, account for 85% of total measles cases in the country. Despite 24 states reporting fewer than 100 accumulated cases of measles for the years 2025 and 2026, the identified 'red zones' present a significant public health concern.

As of January 1, 2025, there have been 9,074 confirmed cases of measles in Mexico, with an additional 223 probable cases reported in 2026. The outbreak has predominantly affected young children, particularly those aged 1 to 4 years, but also poses a risk to other age groups, including those aged 5 to 9 years and 25 to 29 years. The Secretary of Health has emphasized the importance of rapid vaccination campaigns in these high-incidence areas to prevent further spread and complications that could arise from the disease.

Complications from measles can lead to severe health issues and even fatalities, which makes the outbreak particularly alarming. Therefore, the health authorities are actively monitoring the situation and pushing for increased vaccination coverage to protect vulnerable populations, especially young children who are more susceptible to the virus. The situation highlights the necessity of effective public health strategies and community engagement to combat the outbreak and safeguard public health across Mexico.