Comment by abruzzi

The primary positive is that the disease has a very quick run from infection to visibly symptomatic to death. While long distance spread is still possible, most outbreaks have been somewhat geographically contained because of this. The worst case scenario for deadly diseases is asymptomatic carriers, and I don't know if there is such a thing with ebola (except for the first few days of infection). It's why diseases like HIV have ultimately had greater impact. It can spread for years before anyone becomes symptomatic.