The image shows a black fly with the Onchocerciasis parasite emerging from its antenna. The disease is transmitted by fly bites. According to the World Health Organization, Onchocerciasis, or river blindness, is the second leading cause of blindness in the world.
In the video, students at the Washington International School interviewed Donald Bundy, the African Program for Onchocerciasis Control Coordinator at the World Bank.