Why some people don't get the flu
After exposure to the flu virus, some of us are bed-ridden for days, while others never seem to get sick. New research hints at an explanation to why some people never seem to catch the bug.
Source: msnbc.com: Health
It also has a lot to do with how healthy you are and if your body is enriched with the RIGHT fuel to deal with it. I do not remember when last I had a cold. It was also interesting to learn that up to 45,000 in the US alone die from the flu.