PARIS, FRANCE - APRIL 21: Bill and Melinda Gates participate at the Conference Sring Solidarity at the Mutualite on April 21, 2017 in Paris, France. This conference is an opportunity to remind French presidential candidates of a promise of international solidarity made by France for 47 years: to devote 0.7% of GNI to Official Development Assistance by 2022 and to defend The idea of a France open to the world in the face of the rise of populism. (Photo by Frederic Stevens/Getty Images)
PARIS, FRANCE - APRIL 21: Bill and Melinda Gates participate at the Conference Sring Solidarity at the Mutualite on April 21, 2017 in Paris, France. This conference is an opportunity to remind French presidential candidates of a promise of international solidarity made by France for 47 years: to devote 0.7% of GNI to Official Development Assistance by 2022 and to defend The idea of a France open to the world in the face of the rise of populism. (Photo by Frederic Stevens/Getty Images)
PARIS, FRANCE - APRIL 21: Bill and Melinda Gates participate at the Conference Sring Solidarity at the Mutualite on April 21, 2017 in Paris, France. This conference is an opportunity to remind French presidential candidates of a promise of international solidarity made by France for 47 years: to devote 0.7% of GNI to Official Development Assistance by 2022 and to defend The idea of a France open to the world in the face of the rise of populism. (Photo by Frederic Stevens/Getty Images)
PARIS, FRANCE - APRIL 21: Bill and Melinda Gates pose in front of the Elysee Palace before receiving the award of Commander of the Legion of Honor by French President Francois Hollande on April 21, 2017 in Paris, France. French President Franois Hollande awarded the Honorary Commander of the Legion of Honor to Bill and Melinda Gates as the highest national award under the partnership between France and the Bill & Melinda Gates Foundation, which have been unavoidable actors for several years Of development assistance and health in the world. (Photo by Frederic Stevens/Getty Images)
BERLIN, GERMANY - MAY 25: Melinda Gates and Johannes Dietrich Hahn during Melinda Gates, wife of Microsoft founder Bill Gates, receives the Otto Hahn Peace Medal in Gold for her exemplary commitment to global health, education and social development at Rotes Rathaus on May 25, 2017 in Berlin, Germany. The Max Planck Society has honoured up to 30 young scientists and researchers each year with the Otto Hahn Medal for outstanding scientific achievements since 1978. (Photo by Tristar Media/Getty Images)
