German Chancellor Angela Merkel addresses the opening ceremony of the 68th session of the World Health Assembly (WHA) in Geneva, Switzerland, on May 18, 2015. The 68th session of the WHA on Monday kicked off here, over 3,000 delegates from 194 member states would focus on the discussion of Ebola outbreaks and the post-2015 health agenda. (Xinhua/Xu Jinquan)
