The names of trainee health workers are seen written on their protective suits at a World Health Organization (WHO) training session in Freetown September 30, 2014. The death toll from the world's worst Ebola outbreak on record reached 3,338 people out of 7,178 cases in West Africa as of Sept. 28, the World Health Organization said on Wednesday. Picture taken September 30. REUTERS/Umaru Fofana (SIERRA LEONE - Tags: HEALTH DISASTER)