You think they don’t have crowds in Africa?
You see pandemic as more likely here than in Africa, well it hasn’t happened in Africa in during the 38 year history of Ebola outbreaks, and I think it is less likely to happen here.
America is a totally different world than Africa, different in ways that makes it easier for us to deal with Ebola.
The only reason there wasn't a pandemic from Ebola up to now was that the previous cases occurred in small, isolated villages that were difficult to get to and where travel back and forth was rare.
Now that it's in a crowded, urban setting it's different. MOST of the population of the US live in crowded, urban settings. Do the math.