My friends have told me the answer is no, but I just wanted to check online for complete clarity. They stated cases where sometimes some ethnicities or races are more immune to certain bacteria than others. They did say that certain locations have their own set of germs in the air. China has different germs in the air than America does, and the same with other countries. I guess my thinking was also because of when Europeans came over to America and diseased the natives. Also, if you do have information, it would be nice if you cited it... Just saying url/books/references are nice. This isn't for a report or anything, just my own interest. (By the way, this is my first time asking a question on Yahoo! answers. I usually just google something and it pulls me back here.)