The reason why the western countries have been spared a mass outbreak of ebola is that the African people who are usually infected are not nearly as wealthy and mobile as the Chinese.
Hygiene, diet, local superstitions, and many other localized issues in Africa contribute to the ebola problem there, much as similar issues in mainland China contribute to the corona virus problem, such as SARS back in 2002/2003, and the current virus. Btw SARS peaked in Toronto around and just after the time of Chinese New Year's in early 2003.
The difference here is that far fewer African people in the affected areas are likely to go back and forth between their homeland and North America, whereas vast numbers of Chinese people traditionally go back to visit their friends and relatives in China at New Year's and other times, and return to North America often as carriers of the virus, usually unknowingly given the incubation period involved.