Global Health

People gather at bank of the Cauvery River in the state of Tamil Nadu. Sudarshan V/Getty Images hide caption

A strain of the Zika virus is stained green in this image from a transmission electron microscope. The virus sample came from a microcephaly case in Brazil. Science Source hide caption

Tryphena Natukunda, 18, won her title in a field of more than 150 contestants. Courtesy of Jacquelyne Alesi/UNYPA hide caption

Trucks carrying humanitarian aid were hit by airstrikes in Aleppo, Syria, last week. Twenty people were killed, including 12 aid workers. Anadolu Agency/Getty Images hide caption

A boy stands in line for a measles vaccination in the northern Central African Republic. More than half the cases of measles each year are reported in Africa and Asia. Spencer Platt/Getty Images hide caption

Khaleed Khateeb, 21, was the videographer for the Netflix documentary The White Helmets. "This photo was after double tap of aircraft on July 27, 2014," he says, referring to an airstrike followed by another attack. "I don't know how I survived." Fadi al Halabi/Courtesy of Khaleed Khateeb hide caption

Magic bus team posing on a Matatu van in Nairobi, Kenya. Courtesy of Magic Bus hide caption

Women and children gather at a hand pump in Osukputu, Nigeria, which provides clean water for a community of around 800 people. Mustafah Abdulaziz hide caption

Facebook CEO Mark Zuckerberg and his wife, Dr. Priscilla Chan, have a new goal: cure, manage or eradicate all disease by the end of this century. And they're putting up $3 billion. Jeff Chiu/AP hide caption

Aminu Gamawa at the Saving Lives At Birth conference in Washington, D.C., in July. Joy Sharon Yi/NPR hide caption