Wouldn't China step in before the US if things got bad to the point of threatening the African Economy? I thought China had an economic foothold in Africa, thats why they have a military presence there.
I think op is talking about if or when Ebola reaches US.
It's not a widespread concern for the US. Not that it can't happen here in small pockets, but Ebola is a uniquely African problem, which is allowed to spread from a combination of political instability, African ritual family washing of the dead, aversion to cremation, poor health infrastructure, endemic malaria which has similar initial symptoms, lack of education, porous borders, poor public health infrastructure, and a seasonal migratory workforce that can carry disease across borders.