A worker fumigates the street against mosquito breeding to prevent diseases such as malaria, dengue and Zika in Port-au-Prince, Haiti. Andres Martinez Casares / Reuters
Diba Cisskho, 70, lost his eyesight to river blindness. His translucent eyes are the telltale sign of the disease, which is transmitted by black flies. Courtesy Ed Kashi
Fily Kamara, 76, was treated for river blindness decades ago and still has his eyesight, although it is greatly diminished. Courtesy Ed Kashi
River blindness is caused by repeated bites from black flies that live near flowing water. Courtesy Ed Kashi
A young boy from the Yanomami tribe, who live in the rainforest in Brazil and Venezuela. Courtesy: Sam Valadi / Flickr
A worker fumigates the street against mosquito breeding to prevent diseases such as malaria, dengue and Zika in Port-au-Prince, Haiti. Andres Martinez Casares / Reuters
Diba Cisskho, 70, lost his eyesight to river blindness. His translucent eyes are the telltale sign of the disease, which is transmitted by black flies. Courtesy Ed Kashi
Fily Kamara, 76, was treated for river blindness decades ago and still has his eyesight, although it is greatly diminished. Courtesy Ed Kashi
River blindness is caused by repeated bites from black flies that live near flowing water. Courtesy Ed Kashi
A young boy from the Yanomami tribe, who live in the rainforest in Brazil and Venezuela. Courtesy: Sam Valadi / Flickr
A worker fumigates the street against mosquito breeding to prevent diseases such as malaria, dengue and Zika in Port-au-Prince, Haiti. Andres Martinez Casares / Reuters