Bill Gates, Co-Chair the Bill & Melinda Gates Foundation shows a vaccine during the press conference. UN Photo / Jean-Marc Ferr
Tom Paulson is founder and lead journalist at Humanosphere. Prior to operating this online news site, he reported on science, medicine, health policy, aid and development for the Seattle Post-Intelligencer. Contact him at tom[at]humanosphere.org, follow him on Twitter @tompaulson and/or send a comment below.