U.S. citizen working in Congo tests positive for Ebola; outbreak still spreading largely undetected, says WHO official

A U.S. citizen in the Democratic Republic of the Congo has tested positive for the Bundibugyo Ebola virus. WHO officials warn that the outbreak is likely significantly larger than official data suggests, with many cases occurring outside of known contact lists.
Why it matters
The potential underreporting of Ebola cases poses a significant public health risk for containment efforts in the region.
A U.S. citizen working for a humanitarian organization in the Democratic Republic of the Congo has tested positive for the Bundibugyo Ebola virus, the U.S. CDC said on Friday, July 10, 2026.
The article relies on official data from the CDC and WHO, maintaining a neutral, informative tone.
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