The Pan American Health Organization (PAHO) has declared that the Americas no longer hold the status of being free from endemic measles transmission. This decision was made following a meeting of the PAHO Measles, Rubella, and Congenital Rubella Syndrome Elimination Regional Monitoring and Re-Verification Commission in Mexico City from November 4 to 7, 2025. The Commission concluded that endemic measles transmission has been reestablished in Canada, where the virus has circulated for at least 12 months. This marks a significant setback for the Americas, which had previously achieved measles elimination twice. All other countries in the region maintain their measles-free status. Dr. Jarbas Barbosa, Director of PAHO, emphasized that while this loss is reversible, sustained vaccination efforts and regional cooperation are essential to reclaim the achievement. As of November 7, 2025, 12,593 confirmed measles cases have been reported across ten countries, with 28 deaths recorded. The outbreak has primarily affected under-vaccinated communities, with children under five being the most vulnerable. PAHO is providing technical support to affected countries, focusing on surveillance, vaccination campaigns, and outbreak response. Dr. Barbosa called for renewed efforts to strengthen immunization rates and surveillance systems, highlighting the importance of regional solidarity in combating the virus.
PAHO calls for regional action as the Americas lose measles elimination status
