Fruit bats said to be the primary source of deadly Ebola disease
Ebola is genetically stable unlike flu virus which frequently mutates
A Liberian street vendor wears protective gloves as a precaution to prevent infection with the deadly Ebola virus while conducting business with customers in downtown Monrovia, Liberia. Photograph: Ahmed Jallanzo/EPA
Few diseases cause as much fear as Ebola, which was first discovered nearly four decades ago and has been occurring ever more frequently.
