" the idea being to add it to shots as something to enhance the body's reaction to a foreign body"
Wrong. the "mercury" in the vaccine is trace amounts of themirosol, which is a preservative used as an antibacterial/anti-fungal agent for multidose vials of vaccines. Its inclusion in single dose vials has been almost eliminated just to placate idiots like you who think it's dangerous or don't know what it actually does.
If you stick a needle into a multidose vial and it keeps getting punctured, there is a chance of contaminants getting introduced. The themirosol prevents that.
It has nothing to do with making the body react stronger to the vaccine. You have absolutely no idea what you're talking about. Get educated:
http://www.fda.gov/BiologicsBl...