Kissing a romantic partner is a nice way to share an intimate moment – not to mention a hearty dose of saliva and tens of millions of oral microbes . Swapping spit is not the most appealing thought to spice up our Valentine's Day this year, but microbiologist Remco Kort from VU Amsterdam in the Netherlands hasn't caught the ick; he's caught the kissing bug. He thinks that sharing our saliva and its various components may have more to do with falling in love than we ever knew, and he's laid out