On the eve of Global Poverty Project's Global Citizen Festival, GPP CEO Hugh Evans, and GAVI CEO Seth Berkley discuss the power and value of vaccines, ending polio, equity and development.

The Global Citizen Festival, which takes place in Central Park, New York on 29 September, will bring together leading non-profit organizations and musicians, including Neil Young with Crazy Horse, The Black Keys, Band of Horses and K'Naan. The event is live streamed and broadcast across the Internet allowing the world to "attend" the Festival.

Joint the call to action by watching the video and joining in the conversation yourself.

Loading more stuff…

Hmm…it looks like things are taking a while to load. Try again?

Loading videos…