youngmafbog, you really are a silly little racist, aren't you ("not allowed to mention the elephant in the room.")
If the towns and cities involved ARE homes to more migrants than you'd like (which is probably none) then there are plenty of other possible reasons for them being sicker than other places - poverty, overcrowding, families living more closely together than proper white families (who quite properly send their relatives and old folk off to live elsewhere).
So come on, chum, spit it out, so we can return the compliment.
A