Timeline
February 20, 2026 — February 24, 2026
World
Timeline: Mexico's National Measles Vaccination Campaign - February 2026
In response to rising measles cases, Mexico's IMSS (Instituto Mexicano del Seguro Social) coordinated a nationwide intensive vaccination campaign during the weekend of February 21-22, 2026. The campaign involved over 11,000 healthcare workers deploying to medical facilities and public spaces across all states, marking a critical public health response to prevent further outbreaks of a disease Mexico had controlled for 30 years.
12 events · 4 days · 19 source articles
Fri, Feb 20, 2026
Moderate
IMSS Yucatán Announces Weekend Vaccination Campaign
IMSS in Yucatán announced an intensive measles vaccination campaign for February 21-22, operating from 8am to 8pm at Family Medicine Units and Regional General Hospitals. The announcement came amid increasing measles cases in the state, signaling the beginning of coordinated state-level responses.
Fri, Feb 20, 2026
Major
Multiple States Launch Coordinated Vaccination Announcements
Throughout February 20, IMSS facilities across multiple states including Veracruz, Aguascalientes, and others announced coordinated vaccination campaigns. Aguascalientes specifically scheduled campaigns for February 20, 21, and 22 at 12 Family Medicine Units, offering vaccines to both members and non-members of IMSS.
Sat, Feb 21, 2026
Moderate
La Laguna Region and San Luis Potosà Join National Campaign
IMSS announced that nine medical units in the La Laguna region (covering Coahuila and Durango) would open for vaccination on February 21-22. San Luis Potosà also announced participation, with state IMSS director Angélica Cristina RodrÃguez Nester emphasizing that vaccination is the only specific public health action to prevent measles.
Sat, Feb 21, 2026
Moderate
Smaller Communities and Shopping Centers Join Effort
Villa Unión announced a mega vaccination campaign at IMSS Unit 15 for February 21-22. Shopping centers Plaza Mayor and Altacia in León, Guanajuato, allowed their spaces to be used for vaccination modules, demonstrating public-private cooperation to increase accessibility.
Sat, Feb 21, 2026
Major
IMSS Director Announces Nationwide Campaign Deployment
IMSS Director Zoé Robledo announced the full national scope of the campaign, revealing that over 11,000 public servants including medical, nursing, operational, and administrative staff would deploy across the country. The campaign followed President Claudia Sheinbaum's call to redouble vaccination efforts.
Sat, Feb 21, 2026
Moderate
Border States Implement Mass Vaccination Strategy
IMSS in Baja California launched mass vaccination at Family Medicine Units across Mexicali, Tijuana, Tecate, Rosarito, and Ensenada from 8am to 8pm. The border region's participation highlighted concerns about cross-border transmission and the importance of protecting high-traffic areas.
Sat, Feb 21, 2026
Major
Report Highlights Mexico's Measles Control Setback After 30 Years
El Universal published an analysis noting that Mexico had controlled measles 30 years ago but took a step backward in 2026. This contextualized the urgency of the national vaccination campaign and represented a significant public health regression.
Sat, Feb 21, 2026
Moderate
Campaign Focuses on Priority Groups and Eleven States
National coverage confirmed the campaign operated with extended hours at medical clinics and alternative modules, with priority given to minors and booster shots in 11 states. Reynosa and other northern border cities confirmed participation with specific Family Medicine Unit locations.
Sun, Feb 22, 2026
Minor
Weekend Campaign Expands to Central Mexico
Hidalgo state confirmed vaccination sites in Pachuca and Tizayuca for the weekend campaign. The geographic expansion demonstrated the comprehensive national reach of the coordinated effort across urban and semi-urban areas.
Sun, Feb 22, 2026
Moderate
Estado de México Intensifies Healthcare Worker Training
The State of Mexico Health Secretariat conducted the 1st Virtual Colloquium on measles prevention and treatment, training 500 healthcare workers from public and private institutions. Specialists emphasized that vaccination is the most effective measure to prevent infections and reduce serious complications in children.
Mon, Feb 23, 2026
Major
Tabasco Reports Success in Containing Measles Through Coordination
Tabasco authorities reported that coordinated inter-institutional work between state and federal governments had been vital in protecting residents from the global measles outbreak. The state deployed 112 brigades with 448 workers for active surveillance and to complete incomplete vaccination schedules, demonstrating effective containment strategies.
Tue, Feb 24, 2026
Major
Spain Reports Community Transmission in Madrid as Global Concern Grows
Spanish health expert Joan Carlos March confirmed community transmission of measles in Madrid, meaning the virus was spreading sustainably within the community beyond imported cases. This international context underscored the global nature of the outbreak and validated Mexico's aggressive vaccination response. The Balearic Islands reported no cases in 2026 but had been the third-highest region for cases in 2025.
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