We teach our children about the importance of keeping promises, but the best way to communicate this is by keeping our promises to them. In 2011 my organization, the GAVI Alliance, held its first ever pledging conference in London, an historic meeting where we committed to help developing countries immunize an additional quarter of a billion children by 2015, and prevent 4 million future deaths in the process. As Chair of the GAVI Alliance Board I’m proud to say that midway through, GAVI is on track to keep those promises. While we may not be there yet, it is nevertheless a huge accomplishment and one that is not just measured in lives saved. Since 2011, GAVI has funded a total of 67 new vaccine introductions and campaigns. By 2014 all 73 GAVI-supported countries will have introduced 5-in-1 pentavalent vaccines, including introductions in a number of fragile states, such as Democratic Republic of Congo, Haiti, Myanmar, Somalia and South Sudan.