I don't live in America, but I personally don't think it is an apocalyptic-walking-dead scenario, AKA worst-case scenario. The reason why Ebola spread in Africa so quickly was because of poor sanitation and cleanliness in medical institutions. Compared to American hospitals and technology, the United States probably will neutralize the threat faster or at least put up a decent quarantine. Remember HIV in the '80s? Not much research was conducted at that time, so people knew very little about it. Thus, they tended to assume worst-case scenario. They basically acted like what Americans are doing now with Ebola.