They looked at two worm species: Brugia malayi, which causes swelling of the limbs, and Onchocerca volvulus, which causes skin diseases and blindness. In both worms, the researchers saw viruses ...

Niger has become the first African country to eliminate river blindness, a parasitic disease that is the second-leading cause of blindness in the world, the WHO said Thursday.

Niger has met the criteria for elimination of onchocerciasis, making it the fifth country in the world and the first country in Africa to be recognised by WHO as having interrupted transmission of the ...

Press Release - The World Health Organization (WHO) congratulates Niger for having met the criteria for onchocerciasis elimination, making it the fifth country globally and the first country in Africa ...

Niger is recognized as the fifth country in the world, the first in Africa, to have successfully halted the transmission of the parasite Onchocerca volvulus. The other four countries that have ...