ICYMI: Four great Ideas from 2022

Happiness Mopiyiam, 4 months, with her mother Elisabeth Mwaro, is administered an oral polio vaccine at Iloodariak Dispensary in the County of Kajiado, Kenya on May 15, 2019.
A mother with her daughter who just received an oral polio vaccine in the County of Kajiado, Kenya. ©Gates Archive/Dominique Catton