Official notice from World Health Organization

Measles

Region of the Americas

Report type: Disease Outbreak News
Published: Apr 28, 2025

Disease Outbreak News are WHO's official reports on confirmed or potential acute public-health events. WHO does not assign them levels.

Excerpt from World Health Organization:As of 18 April 2025, a total of 2318 measles cases, including three deaths, have been confirmed in six countries in the WHO Region of the Americas, an 11-fold increase compared to the same period in 2024.

Read the full official report on who.int

3 ways to protect yourself

Make sure you and your family are protected: two doses of MMR vaccine are about 97% effective; one dose is about 93% effective.
Check your vaccination records before international travel — measles is circulating in many countries.
If you are unsure whether you are immune, ask a healthcare professional; a blood test or vaccination can resolve it.

Adapted from CDC: Measles Symptoms and Complications All prevention steps

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Educational information from official sources, not personal medical advice. Not real-time — agencies update notices on their own schedules. In an emergency call 911 (U.S.) or your local emergency number.