Sign is seen at the border with Guinea in Kouremale
A sign is seen at the border with Guinea in Kouremale, October 2, 2014. The worst Ebola outbreak on record was first confirmed in Guinea in March but it has since spread across most of Liberia and Sierra Leone, killing more than 3,300 people, overwhelming weak health systems and crippling fragile economies. The sign reads, "Halt-Border". REUTERS/Joe Penney (MALI - Tags: DISASTER HEALTH)