My latest update regarding the history of the Ebola epidemic can be found here:
Ebola Update #1
December 17, 2014:
The exponential growth rate of the Ebola epidemic continued for about two months after my original blog post. The exponential trend was broken in mid-October, 2014, thanks to global relief efforts and effective public health programs in the affected countries. Updates to my original charts can be found here:
A regression including the new data changes the exponent only slightly, to e(0.0248 * number of days), and changes the date for 1 million cases from April 29th to April 17th.