43,997,195 views | ビル・ゲイツ • TED2015

もし次の疫病大流行(アウトブレイク)が来たら?私たちの準備はまだ出来ていない

Become a TED Member
Want to hear more great ideas like this one? Sign up for TED Membership to get exclusive access to captivating conversations, engaging events, and more!