The Pan American Health Organization (PAHO), a United Nations agency, has issued a new report warning of an uptick in measles cases throughout the region.

On Wednesday, the organisation issued an epidemiological alert that called for member states to strengthen “routine surveillance and vaccination activities” in order to combat the spread of the disease.

“The sharp increase in measles cases in the Americas Region during 2025 and early 2026 is a warning sign that requires immediate and coordinated action by Member States,” PAHO said in a statement.

Overall, in the first three weeks of 2026 alone, PAHO documented 1,031 cases of measles in the Americas. Throughout 2025, a total of 14,891 cases were confirmed.