Sierra Leone says it has dozens suspected Ebola cases . Ebola has sickened 137 people , killed dozens , the U.S. Centers for Disease Control and Prevention says . More deaths are suspected or confirmed in Guekedou , Mali .
Mali says it has three suspected Ebola cases . Ebola has sickened 137 people , killed dozens , WHO says . More deaths are suspected or confirmed in Liberia , Sierra Leone .