Pasożyty atakują zwierzęta w Czadzie - NYT

Dr. Ernesto Ruiz-Tiben walks through a field outside of Geulengdeng, Chad, April 12, 2018. At age 78, Ruiz-Tiben still makes as many as six field trip...

Ernesto Ruiz-Tiben, director of the Carter Center's Guinea worm eradication program, rides over the Chari River in Geulengdeng, Chad, April 12, 2018....

Raul Ngartubdoal, right, and Bruno Kagbe demonstrate how they hunt for frogs in a pond in Kakale Mberi, Chad, April 10, 2018. Suddenly, a parasite tha...

A dog emerges from a pond in Kakale Mberi, Chad, April 10, 2018. Suddenly, a parasite that scientists have fought to eliminate for 30 years has begun...

A man washes in the Chari River as women pass by with basins of clothes for washing in Guelengdeng, Chad, April 10, 2018. Suddenly, a parasite that sc...

Two-year-old dog Martoussia rests after a Guinea worm was pulled from his leg in Kakale Massa, Chad, April 10, 2018. Suddenly, a parasite that scienti...

Volunteers explain how to identify Guinea worms to the locals in the village of Dangabol in Chad, April 8, 2018. Suddenly, a parasite that scientists...

Kidana Ndobi, seated left, Moulmadjo Ngabo, center, and Dimanche Toutou, seated right, wait to be given a cash reward for reporting or treating Guinea...

A Guinea worm is inspected, in Kakale Massa, Chad, April 7, 2018. Suddenly, a parasite that scientists have fought to eliminate for 30 years has begun...

Children cool off in the Chari River in Bongor, Chad, April 7, 2018. Suddenly, a parasite that scientists have fought to eliminate for 30 years has be...

Laures Dossou, second from left, pulls a Guinea worm from Djalibe, a 2-year-old dog, with the help of volunteers in Kakale Massa, Chad, April 7, 2018....

A Guinea worm is pulled from Djalibe, a 2-year-old dog, in Kakale Massa, Chad, April 7, 2018. Suddenly, a parasite that scientists have fought to elim...

Mark L. Eberhard, a parasitologist with the Centers for Disease Control and Prevention, examines a water sample by a pond in Bongor, Chad, April 7, 20...

Dead frogs are labeled before being put through a meat grinder and strained for inspection for Guinea worm larvae in Bongor, Chad, April 7, 2018. Sudd...

Christopher Cleveland prepares ground-up frog meat for research in Bongor, Chad, April 7, 2018. Suddenly, a parasite that scientists have fought to el...

Dr. Ernesto Ruiz-Tiben, right, looks on as Laures Dossou, second from left, pulls a Guinea worm from an infected dog in Marabe, Chad, April 7, 2018. A...

Men inspect a net filled with frogs that will be used by scientists working for the Carter Center to determine if they are the reason for the spread o...

Two puppies play outside in the village of Tarakoh in Chad, April 6, 2018. Suddenly, a parasite that scientists have fought to eliminate for 30 years...

Bernadette Tamal sits by her tethered dog, Dounia, outside of her home in the village of Tarakoh in Chad, April 6, 2018. Suddenly, a parasite that sci...

Water is pulled from a protected well in the village of Tarakoh in Chad, April 6, 2018. Suddenly, a parasite that scientists have fought to eliminate...

Dr. Ernesto Ruiz-Tiben, right, inspects a sample from a pond for copepods, tiny aquatic animals that may carry Guinea worm larvae, in Tarakoh, Chad, A...

Dr. Ernesto Ruiz-Tiben, center, speaks with children about the Guinea worm in Tarakoh, Chad, April 6, 2018. At age 78, Ruiz-Tiben still makes as many...