Category: SCIENCE AND TECHNOLOGY
Context : The World Health Organization (WHO) has officially declared Kenya free of human African trypanosomiasis (HAT), or sleeping sickness
WHO Declares Kenya Free of Sleeping Sickness
Making it the tenth country to achieve this milestone. The last indigenous case was detected in 2009, and the last imported case in 2012 in the Masai Mara region.
About the Disease:
HAT is a parasitic disease transmitted by the tsetse fly. Kenya was affected by the rhodesiense form, which progresses rapidly and can be fatal within weeks if untreated.
Factors Behind Elimination:
Kenya’s success is the result of decades of sustained public health measures including tsetse fly control, better diagnostics, community awareness, and strong collaborations between local authorities, WHO, and international partners.
Significance:
This is Kenya’s second eliminated neglected tropical disease after Guinea worm disease in 2018. The achievement protects vulnerable communities, supports economic growth, and contributes to Africa’s goal of eradicating neglected tropical diseases.
Ongoing Measures:
Kenya will maintain strong surveillance and community engagement to prevent resurgence, supported by WHO and partner organizations through post-validation monitoring and rapid response systems.
Former Hotspots:
Historic high-risk areas included counties around Lake Victoria such as Busia, Bungoma, Siaya, Migori, Homa Bay, Kisumu, and Kwale, where sustained control and monitoring proved crucial.
Learning Corner:
Sleeping Sickness
Sleeping sickness, medically known as Human African Trypanosomiasis (HAT), is a parasitic disease caused by protozoan parasites of the genus Trypanosoma. It is transmitted to humans through the bite of an infected tsetse fly found in sub-Saharan Africa.
Key Points:
- Types: Two forms exist—Trypanosoma brucei gambiense (chronic form, West and Central Africa) and Trypanosoma brucei rhodesiense (acute form, East and Southern Africa).
- Symptoms: Early symptoms include fever, headaches, joint pains, and itching. If untreated, it progresses to neurological symptoms like confusion, disrupted sleep cycles, and can lead to coma and death.
- Transmission: The tsetse fly bites humans and animals, transferring parasites into the bloodstream.
- Diagnosis and Treatment: Diagnosis requires blood tests and sometimes examination of cerebrospinal fluid. Treatment depends on disease stage and may involve drugs like pentamidine or melarsoprol.
- Control Measures: Include vector control (reducing tsetse fly populations), active surveillance, prompt diagnosis, and treatment.
- Recent Progress: Several countries, including Kenya, have been declared free of sleeping sickness due to sustained public health efforts.
Sleeping sickness remains a neglected tropical disease but control efforts have significantly reduced its incidence.
Source: AIR