. >> reporter: as burundins do just that, the hope is that the talks that suffered this week in ugandae crisis and present a way out. few, however, expect the president to step down or significantly change his government >>> a new set of u.n. global goals came into effect on 1 january. a new set to tackle poverty, climate change and other ones. sdgs replace the millennium goals. they will use the objectives to phrase the policies over the next 15 years. global health is one of the biggest challenges for the u.n. >> reporter: it is the start of a new chapter in fighting one of the world's most fatal diseases, owe bowl a. only-- ebola. at least 11,000 people died in the most recent outbreak. >> we have to be very clear that although today is an important milestone, it is only a milestone. it is not the end of the ebola response in west africa because what we've learned is while we've stopped the original chains of transmission, we're also seeing small flair, one to three cases occurring. >> reporter: there's no cure for ebola, but two vaccines look promising. they're undergoing human tes