

Brazilian scientist Sotiris Missailidis heads research and development at his country's premier agency for vaccine development, the Bio-Manguinhos Fiocruz Foundation. He's been a key advocate for shifting Brazil's strategy toward inventing its own vaccines. Ian Cheibub for NPR hide caption
Patricia Neves (left) and Ana Paula Ano Bom take a break at the institute in Rio de Janeiro where they work. The two scientists say they've been inseparable since they met in college. Now their friendship has made it possible to launch a remarkable partnership to make mRNA vaccines accessible to the world. Ian Cheibub for NPR hide caption
Romie Perez and Elia Zamarripa at Perez's house. The two are among the many holding impromptu cookouts to make meals for the families of the victims. Nurith Aizenman/NPR hide caption
Volunteers unload food aid in Chena, Ethiopia, one of many parts of the world where conflict has fueled hunger. Jemal Countess/Getty Images hide caption
A driver sits in the cab of a combine harvester during the summer harvest in a field of wheat in Varva, Ukraine. Ukraine accounts for more than 10% of the global wheat market. Russia's war threatens to disrupt the spring planting season. Vincent Mundy/Bloomberg via Getty Images hide caption
Dr. Paul Farmer, photographed in 2017 at a screening of a film about his life's work, Bending the Arc. Desiree Navarro/Getty Images hide caption
A student washes her hands before entering a classroom at a school in Blantyre, Malawi, in March 2021. Top scientists say that many African countries, including Malawi, appear to have already arrived at a substantially less threatening stage of the coronavirus pandemic. Joseph Mizere/Xinhua News Agency/Getty Images hide caption