Epidemiological Alert - Measles in the Americas Region - 28 February 2025

In 2024, the Americas Region was again verified as measles-free, while maintaining elimination of rubella and congenital rubella syndrome (CRS). However, the recent identification of multiple measles outbreaks and cases, including some fatal ones, in countries and territories of the region, puts this achievement at risk. In view of this situation, the Pan American Health Organization / World Health Organization (PAHO/WHO) calls on Member States to strengthen vaccination, epidemiological surveillance, and rapid response activities. It also recommends implementing active community, institutional and laboratory searches for the early identification of cases, as well as carrying out complementary vaccination activities to close possible immunity gaps.