There are a lot of scary numbers floating around about Ebola. Take 1.4 million: the CDC’s worst-case scenario for Ebola cases in Western Africa by the end of January. Or two: the approximate number of healthy people infected by each new Ebola patient.
But perhaps the most important Ebola number right now is 70 percent. That’s the proportion of patients who need to be isolated -- in treatment centers or at least in their homes -- in order to put a quick end to the Ebola outbreak, according to the U.S. Centers for Disease Control and Prevention.