Angeline Murimirwa, executive director of the girls' education group CAMFED in Africa, at a pub in Oxford, England, in 2018. In August, CAMFED was awarded the $2.5 million 2021 Hilton Humanitarian Prize. Marc Silver/NPR hide caption

Yemeni children diagnosed with cancer wait to receive treatment at an oncology ward of a hospital in Sana'a on February 4. A new study looks at the impact of COVID-19 on kids with cancer. Mohammed Hamoud/Getty Images hide caption

Dr. Raj Panjabi, the newly named head of the President's Malaria Initiative, treating patients during a visit to Liberia, where he was born and lived until 1990. He'll lead the effort to prevent and treat malaria around the world. Each year, some 400,000 people die of a disease that, he notes, is "preventable and treatable." Gabriel Diamond/Skoll Foundation hide caption

A herd of goats in Russia ponders ... well, we can't really know what they're pondering, but it's a safe bet they're interested in finding something to eat. Kirill Kudryavtsev/AFP via Getty Images hide caption

The question of what to call the "developing world" is a developing debate. Jing Wei for NPR hide caption

Alice Amonde sits on a boat on the village of Nduru Beach, Kenya. She is part of the group of women who have fought against the practice of transactional sex that was part of the fishing business. This photograph was taken in November 2019. This spring, flooding from Lake Victoria devastated the village. Julia Gunther For NPR hide caption

Air passengers wearing practically full-body coveralls at the Netaji Subhas Chandra Bose International Airport in India. Dibyangshu Sarkar/AFP via Getty Images hide caption