Niger Achieves Historic Milestone: Eliminates River Blindness
The World Health Organization (WHO) has officially recognized Niger as the first country in the African Region to eliminate river blindness, also known as onchocerciasis. This achievement marks Niger as the fifth country globally—and the first in Africa—to halt the transmission of Onchocerca volvulus, the parasite responsible for this debilitating disease.
« Eradicating a disease is a monumental feat that demands relentless commitment, » said Dr. Tedros Adhanom Ghebreyesus, Director-General of the WHO. « Niger’s unwavering dedication to freeing its population from this stigmatized, poverty-driven condition demonstrates the incredible progress we’ve made in combating neglected tropical diseases. This success not only offers hope to other nations still battling onchocerciasis but also underscores what is possible with collective action. »
River blindness is a parasitic infection and the world’s second-leading infectious cause of blindness, surpassed only by trachoma. Spread through the bite of infected black flies—commonly found near fast-flowing rivers—the disease disproportionately affects rural communities in sub-Saharan Africa and Yemen, with limited endemic areas in Latin America.
Country-led initiatives and strategic partnerships drive success
Niger’s fight against onchocerciasis began in earnest between 1976 and 1989 under the WHO’s Onchocerciasis Control Programme in West Africa (OCP). Through targeted insecticide spraying, the country drastically reduced transmission rates. Later, in collaboration with Merck, Sharpe & Dohme (MSD), Niger launched large-scale mass drug administration (MDA) campaigns using ivermectin and albendazole from 2008 to 2019. These efforts primarily targeted lymphatic filariasis, but their overlap with onchocerciasis-endemic zones proved doubly effective, as ivermectin combats both conditions.
By 2014, Niger initiated preliminary assessments to confirm interruption of onchocerciasis transmission following the cessation of MDA for lymphatic filariasis in most regions. Subsequent entomological and epidemiological surveys confirmed the success of the combined approach—vector control and drug administration—reducing disease prevalence from roughly 60% to just 0.02%.
The triumph owes much to Niger’s robust partnerships with the WHO, government agencies, and NGOs. These collaborations facilitated resource mobilization, technical support, and continuous monitoring, allowing for rapid adaptation of strategies to ensure sustained impact. « Onchocerciasis has long devastated lives and stifled economic growth in affected communities, » noted Dr. Matshidiso Moeti, WHO Regional Director for Africa. « Niger’s achievement lifts this burden, setting a powerful example for other African nations in the fight against neglected tropical diseases. »
Global progress and Africa’s leadership
Globally, 54 countries have successfully eliminated at least one neglected tropical disease. Niger joins four other nations—all in the Americas—with WHO-certified onchocerciasis elimination: Colombia (2013), Ecuador (2014), Mexico (2015), and Guatemala (2016).
Within the WHO African Region, 21 countries have eliminated at least one neglected tropical disease. For Niger, this milestone follows its 2013 certification as free from dracunculiasis (Guinea worm disease), making it one of Africa’s leaders in public health.
