After more than a century of effort, Kenya has received official World Health Organization validation that it has eliminated human African trypanosomiasis — sleeping sickness — as a public health problem. The WHO granted that recognition in June 2025 C.E., making Kenya the 10th country on the continent to reach this threshold and one of only a handful of nations to have beaten back two separate neglected tropical diseases.
At a glance
- Sleeping sickness elimination: Kenya last recorded a locally transmitted case in 2009 C.E., with two travel-linked cases near the Maasai Mara in 2012 C.E. — none since.
- WHO validation: Kenya submitted its elimination dossier in 2023 C.E. and received formal recognition in June 2025 C.E., joining Benin, Chad, Côte d’Ivoire, Equatorial Guinea, Ghana, Guinea, Rwanda, Togo, and Uganda.
- Neglected tropical diseases: This is Kenya’s second NTD elimination win, following Guinea worm disease in 2018 C.E. — a record few low- and middle-income countries can match.
A disease that devastated generations
Sleeping sickness is caused by the parasite Trypanosoma brucei rhodesiense, transmitted through the bite of infected tsetse flies. Left untreated, it attacks the nervous system — bringing confusion, disrupted sleep, coma, and death, often within weeks.
The disease hit hardest in rural and farming communities, precisely where tsetse flies thrive: savanna and woodland ecosystems that Kenyan families depend on for agriculture and livestock. That overlap made it exceptionally difficult to contain for most of the 20th century C.E. It was not just a health problem — it suppressed entire regional economies and kept farming families in cycles of illness and poverty.
How Kenya did it
Elimination required coordination across health systems, government agencies, and local communities over several decades.
Kenya established 12 sentinel health facilities across six historically affected counties, each equipped with advanced diagnostic tools and trained staff capable of identifying even rare or ambiguous cases. That surveillance network meant the country could verify — not just hope — that transmission had stopped. The Kenya Tsetse and Trypanosomiasis Eradication Council (KENTTEC) scaled up monitoring of tsetse fly populations and animal trypanosomiasis alongside human cases, since the parasite cycles through wildlife and livestock as well.
Kenya’s 2023 C.E. WHO dossier had to demonstrate sustained zero transmission, functional surveillance capacity, and a credible post-elimination plan. The country now operates an ongoing surveillance system supported by FIND, with a WHO-maintained treatment reserve from Bayer and Sanofi ready to deploy if a case does emerge. That preparedness reflects a clear-eyed understanding: elimination is not eradication. Rare cases may still arise through travel or wildlife exposure, and experts stress that ongoing vigilance is the price of keeping the numbers at zero.
What it means across Africa
Across all neglected tropical diseases, 57 countries have now eliminated at least one NTD, according to the WHO. Kenya’s achievement sits within that broader momentum — and within the WHO’s Roadmap for Neglected Tropical Diseases 2021–2030, which targets elimination of at least one NTD in 100 countries by 2030.
WHO Director-General Dr. Tedros Adhanom Ghebreyesus called the achievement “another step toward making Africa free of neglected tropical diseases.” Kenya’s Health Cabinet Secretary Aden Duale credited sustained political will, scientific rigor, and community-driven action. Both framings are accurate. Neither alone would have been sufficient.
The challenge ahead is real. Funding for NTD programs globally faces growing pressure from health budget cuts, and the 2030 roadmap still has significant ground to cover. Kenya’s model — long-horizon investment, community-level surveillance, and documented proof — offers something concrete for other countries to follow.
What proof like this is worth
Sleeping sickness was once accepted as an unavoidable feature of rural African life. Kenya’s elimination demonstrates that acceptance was wrong. The CDC estimates that sleeping sickness once threatened tens of millions of people across sub-Saharan Africa; the WHO now counts fewer than 1,000 new cases per year continent-wide — a reduction that reflects coordinated effort across dozens of countries over decades.
Kenya’s National Public Health Institute will lead ongoing surveillance, with the sentinel facility network built during the elimination push remaining active. The health workers, resources, and community energy once directed at sleeping sickness can now address other challenges. That reallocation is itself a form of progress — quiet, compounding, and hard-won.
The proof of elimination belongs to Kenya. And it belongs to every community that held the line for more than a decade.
Read more
For more on this story, see: Down to Earth
For more from Good News for Humankind, see:
- Marie-Louise Eta becomes the first female head coach in men’s top-flight European football
- Ghana establishes a new marine protected area at Cape Three Points
- The Good News for Humankind archive on global health
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