Indeed, there can and eventually inevitably will be changes that decrease R-nought, presumably below 1 where it will then "burn out". Eventually the afflicted

Indeed, there can and eventually inevitably will be changes that decrease R-nought, presumably below 1 where it will then "burn out". Eventually the afflicted region(s) will be decided into those whose behaviors, for whatever reason, do not divided transmission, and those that do, with the latter containing a few survivors (of the myriad other things that kill weakened people as well as of Ebola). But I'm pretty sure we don't know all that's going on with this outbreak in non-village settings, how mobility of people in this Western region vs. the prior outbreaks in Central Africa is affecting things, how ingrained these burial practices are, etc. We hypothesize, but only time will tell which, if any of these are correct.