Khadiga Adam holds her severely malnourished 2-year-old daughter, Rashida, in South Sudan.

Bill Gates said that Elon Musk had gutted the U.S. Agency for International Development, resulting in the deaths of children in some of the world’s poorest countries.

“I think it’s objective to say to you that things will be better in the next 20 years.”

Bill Gates and George Osborne, Britain’s chancellor of the Exchequer, at an event in Liverpool in 2016 announcing funding for a program aimed at reducing deaths from malaria.

Harvesting cassava on a farm in Oyo, Nigeria, in May. A new U.S. program is trying to promote a return to traditional crops like cowpeas, cassava and millets.

Sulemana Musah, a schoolteacher in Accra, Ghana, started feeling sick in 2011, while he was a student, but he didn’t receive a hepatitis C diagnosis until 2017.

Deborah Sebi, right, a nurse at a mobile clinic in Teshie, a fishing village in Ghana, prepared an immunization for Rebecca Bamembaye’s 3-month-old, Doris.

Archip Lobo, a founder of a Congolese microgrid company.