Costa Rica measles cases reached five in 2026 as PAHO reports the Americas region's worst outbreak in 22 years, with details on vaccination advice.
COSTA RICA · HEALTH
Key Facts
—What happened: Costa Rica confirmed five measles cases in 2026, all linked to travelers who caught the virus abroad.
—How big: The Americas region logged more than 47,000 measles cases this year, the highest total since 2004.
—What it means: That case count marks the worst measles resurgence anywhere in the Americas in 22 years.
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