i just spoke with margaret chan this morning. she calls me when she needs to tell me anything and she called to tell me a couple of things. first, they had a very successful meeting on vaccines because there are several vaccine candidates. now, let me stress that there is no proven vaccine, so we can't be lulled into thinking that a videocassette scene is going to solve this problem. an interesting position now. >> what do you see as the world bank's role in this? do you find the organization suited for the division of how you might benefit the situation? >> world banks is very involved in world financing health. larry summers did a study, it was now 11 months ago, but in january 2014 larry summers publish the a study to show that in low to middle income countries, 24% of growth from 2000 to 2011 was due to improved health outcomes. life expectancy went up, mortality went down -- infant mortality that went down, those accounted for a quarter of economic growth. we're involved in health because it's so important for health. in thi