Sierra Leone's President Ernest Bai Koroma, Congo's President Denis Sassou Nguesso, Belgian Queen Mathilde, EU foreign policy chief Federica Mogherini (from L to R) pose for photos prior to a high-level international conference on Ebola, in Brussels, capital of Belgium, March 3, 2015. More than 9,500 people were killed and 24,000 others were infected in west Africa by Ebola, according to the World Health Organisation (WHO).(Xinhua/Ye Pingfan)