Mexico is facing a growing measles outbreak, with confirmed cases exceeding 10,000 nationwide as of February 17, 2026. The surge in infections, a significant public health concern, has prompted increased vaccination efforts and heightened vigilance across the country. The latest report from the Secretaría de Salud indicates 235 new confirmed cases in the last 24 hours, bringing the total to 10,085 according to Excelsior.
The vast majority of those infected – over 91% – were not vaccinated against measles, a stark reminder of the importance of immunization. This underscores the vulnerability of unvaccinated populations and the effectiveness of the measles vaccine in preventing the spread of the highly contagious virus. The current outbreak, spanning the period from 2025-2026, has been reported in 362 municipalities across all 32 Mexican states.
Rising Cases and Geographic Distribution
More than a third of all cases reported during the outbreak have occurred in 2026 alone, with 3,643 patients diagnosed this year. Jalisco remains the epicenter of the outbreak, accounting for 2,153 confirmed cases, representing a substantial portion of the national total. Other states significantly affected include Chiapas (326 cases), Mexico City (228 cases), Sinaloa (169 cases), and Puebla (87 cases) as reported by Excelsior.
The age groups most impacted by the measles outbreak are children aged 1 to 4 years, followed by those aged 5 to 9 years, and then young adults between 25 and 29 years. This distribution highlights the need for targeted vaccination campaigns to protect vulnerable age groups and prevent further transmission.
Tragic Loss of Life and Vaccination Status
While no new deaths were reported as of February 17th, the outbreak has tragically resulted in 31 fatalities during the 2025-2026 period. Alarmingly, over 96% of those who died from measles were unvaccinated, further emphasizing the critical role of vaccination in preventing severe illness and death. The states reporting fatalities include Chihuahua (21 deaths), Jalisco (3 deaths), Durango (2 deaths), Sonora (1 death), Michoacán (1 death), Tlaxcala (1 death), Mexico City (1 death), and Chiapas (1 death).
INE Takes Precautions Amidst Outbreak
The Instituto Nacional Electoral (INE), Mexico’s electoral body, is taking preventative measures following a confirmed case of measles among its staff. These measures include the reinstatement of mandatory mask-wearing in common areas, increased availability of hand sanitizer, and the planning of vaccination drives for employees. The INE is also considering implementing remote work options to minimize potential exposure and contain the spread of the virus as reported by Quadratín Morelos.
A vaccination drive is scheduled for February 19th at the INE’s Tlalpan complex, targeting personnel aged 49 and under who may need to complete their vaccination schedule. This initiative builds upon existing vaccination campaigns in high-risk states like Chihuahua and Jalisco. For the next five days, only essential personnel will be required to work on-site at the Tlalpan headquarters, with the remainder transitioning to remote work.
Enhanced Monitoring and Safety Protocols
To prevent further spread, the INE is intensifying monitoring for symptoms across all its facilities and ensuring prompt medical evaluation for suspected cases. New safety protocols include mandatory mask-wearing in enclosed spaces and common areas, the provision of hand sanitizer, and restrictions on physical contact, alongside improved ventilation. The INE emphasized that these measures are strictly preventative, aimed at safeguarding the well-being of both its employees and the public who visit its facilities.
The ongoing measles outbreak serves as a critical reminder of the importance of maintaining high vaccination rates to protect communities from preventable diseases. Public health officials continue to urge individuals to verify their vaccination status and seek immunization if they are not fully protected. Further updates on the outbreak and vaccination efforts can be found on the Secretaría de Salud’s website here.
Disclaimer: This article provides information about a public health issue and should not be considered medical advice. Please consult with a healthcare professional for personalized guidance on vaccination and measles prevention.
The Secretaría de Salud is expected to release its next report on the measles outbreak on February 24, 2026. Continued monitoring and vaccination efforts will be crucial in controlling the spread of this preventable disease. Share this information with your community and help protect those at risk.
