WHO世界卫生组织：2023-2024年消除人类盘尾丝虫病：进展报告（英文版）

Onchocerciasis, more commonly known as river blindness, is a neglected tropical disease caused by the parasitic worm Onchocerca volvulus. The disease is transmitted to humans through the bite of an infected blackfly (Simulium spp.), which breeds in fast-flowing rivers and streams. The blackfly vector ingests microfilariae (immature worms) when it bites an infected person. Inside the fly, the microfilariae develop into infective larvae that are then transmitted to another human during subseque