Not PC just good science....
Reiterating some of Davin's comments...
There is no reason to think that there would be a racial link. Humans are genetically virtually identical except some minor superficial details (hair, eyes, and skin color) and blood types. Any molecular biologist worth their weight in hair would take this as granted (not always a good thing).
10% of Toronto is ethnicaly Chinese. Do you think this might result in a bit more traffic to and from China then say Raton, Texas?
Economic, Cultural or behavioral differences, sure. Racial, probably not.
Not unless, like some think, it was an engineered virus.