You're reading: CNN: Ebola death toll tops 700

Nancy Writebol fought for her life against Ebola hemorrhagic fever on July 31. While she did, the virus that befell the American missionary in Liberia as she worked to save its victims continued on a rampage through West Africa. It is believed to have killed 729 people in Guinea, Liberia, Sierra Leone and Nigeria from March through July 27, the World Health Organization said on July 31. 

Read the story here.