Niger becomes first african country to eliminate river blindness

The World Health Organization (WHO) has officially recognized Niger as the first country in Africa to successfully halt the transmission of Onchocerca volvulus, the parasite responsible for river blindness—a debilitating disease that ranks as the world’s second leading infectious cause of blindness.

« Eliminating a disease is a monumental achievement that demands relentless dedication and collaboration», declared Dr. Tedros Adhanom Ghebreyesus, WHO Director-General. « Niger’s unwavering commitment to free its people from this stigmatizing, poverty-driven illness demonstrates what is possible when nations, partners, and communities unite. This breakthrough not only underscores the progress we’ve made in combating neglected tropical diseases but also offers hope to other countries still battling this scourge.»

River blindness, also known as onchocerciasis, is a parasitic infection transmitted through the bite of an infected blackfly, commonly found near fast-flowing rivers. The disease disproportionately affects rural communities in sub-Saharan Africa and Yemen, though smaller endemic zones persist in parts of Latin America.

country-led strategies and global partnerships drive success

Niger’s triumph over river blindness is the result of decades of coordinated action. Between 1976 and 1989, the country participated in the Onchocerciasis Control Programme (OCP) in West Africa, a WHO-led initiative that deployed large-scale insecticide spraying to drastically reduce transmission rates. Later, thanks to generous donations of ivermectin from Merck & Co., Inc., Niger launched mass drug administration (MDA) campaigns from 2008 to 2019. These efforts targeted lymphatic filariasis—another parasitic disease—but also proved highly effective against onchocerciasis, since ivermectin is active against both infections. The targeted regions overlapped with onchocerciasis hotspots, accelerating progress toward elimination.

By 2014, Niger had initiated preliminary assessments to verify whether transmission of Onchocerca volvulus had ceased. Subsequent entomological and epidemiological surveys confirmed that the combined approach of vector control and MDA had successfully stopped transmission. Disease prevalence plummeted from around 60% to a mere 0.02%, effectively eliminating the parasite from the country.

Critical to this achievement was a robust partnership between the Nigerien government, WHO, and multiple non-governmental organizations. This collaboration facilitated resource mobilization, technical expertise, and continuous monitoring—allowing health authorities to adapt strategies in real time and ensure sustained impact.

« River blindness has long robbed communities of their health, livelihoods, and dignity», noted Dr. Matshidiso Moeti, WHO Regional Director for Africa. « By eliminating this disease, Niger has lifted a heavy burden from its people and set a powerful example for other nations grappling with neglected tropical diseases. This milestone builds on the country’s earlier success in eradicating Guinea worm disease in 2013, further cementing its leadership in public health on the continent.»

global progress and future outlook

Globally, 54 countries have now eliminated at least one neglected tropical disease. Niger joins a select group—including Colombia, Ecuador, Guatemala, and Mexico—where river blindness transmission has been officially stopped. Within Africa, 21 countries have achieved elimination of at least one such disease. For Niger, this marks its second major public health victory, following its certification as free from Guinea worm disease in 2013.