Ivorian schoolchildren wait in line to wash their hands prior to go to school on October 23, 2014 in a primary school in Bouake. The Ivory Coast, currently free of the Ebola epidemic ravaging its neighbours, has launched a hunt for a Guinean health worker who may have fled his home country after possibly catching the disease. AFP PHOTO / ISSOUF SANOGO        (Photo credit should read ISSOUF SANOGO/AFP/Getty Images)