The World Health Organization welcomes the appointment of the Chair-elect of the Board of Gavi, the Vaccine Alliance, Dr Ngozi Okonjo-Iweala. She will take up the position of Chair from January 2016. Dr Okonjo-Iweala is a renowned development economist and former Nigerian Finance Minister. She brings more than 33 years of development and financial expertise to the Gavi Board at a critical period for immunization in developing countries. Earlier this year, WHO warned that vaccines are not being delivered equitably or reliably and that only 1 out of the 6 key vaccination targets for 2015 is currently on track — the introduction of under-utilized vaccines, a target to which Gavi has contributed significantly. In taking up the position of Board Chair, Dr Okonjo-Iweala will succeed Dagfinn Høybråten, a former Norwegian Minister of Health and current Secretary General of the Nordic Council of Ministers. She will also work closely with Dr Flavia Bustreo, WHO Assistant Director-General for Family, Women’s and Children’s Health, who is Vice Chair of Gavi. Since 2000, Gavi has supported the immunization of more than half a billion additional children, leading to seven million future deaths being averted. WHO is one of the founding members of Gavi, a public-private partnership formed in 2000, to address global inequities in access to and coverage of available lifesaving vaccines. Over the next 5 years, WHO will continue to lead collective efforts to achieve and sustain universal vaccination coverage as outlined in the Decade of Vaccines Global Vaccine Action Plan. WHO plays a critical role providing global recommendations on immunization, ensuring that vaccines are safe and of assured quality, and providing support to countries to implement immunization programmes.