WASHINGTON, Sept 7 (Reuters) – The United States needs to do more to help control West Africa’s deadly Ebola outbreak to stop it becoming a global crisis that could one day threaten Americans, President Barack Obama said in an interview.

Source: http://feeds.reuters.com/~r/reuters/AfricaNigeriaNews/~3/obUu6YqSxoI/idAFL1N0R807Y20140907