From a BBC article: The charts of deaths in the highly impacted African countries show that the outbreak is no way close to containment. The graphs approximate an exponential increase in deaths from the disease. There are some caveats as the counts include "confirmed, probable, and suspected", but the trend line is not encouraging. With our highly mobile Western society and the very limited number of medical facilities both capable and trained to handle this type of issue, I suspect the outbreak will be harder to contain in the USA than the CDC has predicted. After all, the initial response in Dallas was as expected: people defaulted to the level of training.
http://www.bbc.com/news/world-us-canada-29587803