People stand on January 19, 2015 outside the Safia in Conakry as students head back to school after nearly four months of school recess due to the Ebola outbreak. A total 21,296 people have so far been infected with Ebola since the world's worst-ever outbreak began just over a year ago, and 8,429 of them have died, according to the latest figures from the World Health Organization. The vast majority of the deaths occurred in Guinea, Liberia and Sierra Leone.      AFP PHOTO / CELLOU BINANI        (Photo credit should read CELLOU BINANI/AFP/Getty Images)