Conference on vaccines and immunization

Federal Chancellor Angela Merkel (C) stands with Seth Berkley, CEO of Gavi, entrepreneur Bill Gates, Norwegian Prime Minister Erna Solberg (L-R), Jakaya Kiwete, President of Tanzania, Ibrahim Boubacar Keita, President of Mali, Federal Minister for Development Gerd Mueller, Federal Helth Minister Hermann Groehe, and chairman of the GAVI board, Dagfinn Hoybraten at a Global Alliance for Vaccines and Immunization (GAVI) conference with the slogan 'Reach Every Child' in Berlin, Germany, 27 January 2015. Among the members of the vaccination alliance are governments, vaccine manufacturers, NGOs, as well as health and research organizations. PHOTO: BERND VON JUTRCZENKA/dpa | usage worldwide (Photo by Bernd von Jutrczenka/picture alliance via Getty Images)