That will not happen.Like many of the "worriers" here, I don't have nearly as much confidence in the US health care system as many here do.
I do think that there is reasonable cause for concern in the US and much more so in the less-developed nations. Consider if each ebola victim infect just two other people, then you have an exponential infection function. It doesn't take much math to figure out that can quickly lead to many millions infected in a relatively short time.