The Pan American Health Organization (PAHO) has issued an epidemiological alert due to an increase in measles cases in several countries in the Americas. As of epidemiological week 8 of 2025 (21 February 2025), 268 measles cases, including one death, have been confirmed in Argentina, Canada, Mexico, and the United States. This represents a significant increase compared to the same period in 2024, when 60 cases were reported during the first eight weeks of the year.