title: The GAVI Alliance--successes and ongoing challenges.
mesh_terms: D002648:Child; D003299:Cooperative Behavior; D003906:Developing Countries; D006801:Humans; D017589:Immunization Programs / Q000600:supply & distribution*; D007391:International Cooperation; D009939:Organizations, Nonprofit; D017778:Vaccines, Combined / Q000600:supply & distribution*
chemical_list: D017778:Vaccines, Combined