the richest western nations to poorer countries. but you don't think it's enough. why? >> because to win the war against the pandemic, we need to do more. we have to make sure, first, that this vials that are now pledged, 1 billion of them, gets into harms in people of poor countries. in other words, we need the whole logistics and support to get the vaccinations done. and two, we need simply more. more doses, higher level of production. we put a price tag of what needs to be done at $50 billion. this dwarfs, poppy, in comparison with the benefits the world is going to reap from this investment.