Costa Rica confirms five travel-linked measles cases | The BriefBrief
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Event Brief

Costa Rica confirms five travel-linked measles cases

Filed: Sep 08, 2026 at 9:11 AM ET
Summary: Costa Rica has confirmed five measles cases in 2026, with health officials saying all five are linked to travel. Officials reported there are no signs of measles spreading inside the country, while PAHO described the Americas region’s outbreak as the worst in 22 years.
WHO: Costa Rica health officials; PAHO
WHAT: Costa Rica confirmed five measles cases, all travel-linked, with no evidence of local spread.
WHEN: Jan 01, 2026
WHERE: Costa Rica
WHY: Cause not yet established.
ℹ️ This event is analyzed using pattern arcs, velocity indicators, and source analysis in our MI Console.

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