Shake on it?

Shake on it? More and more, I wonder if I should. I wonder if shaking hands is really such a great idea anymore. As much as I enjoy the human touch that comes with a handshake, I wonder if we are being naive and transmitting all sorts of diseases by this friendly gesture. Perhaps we should acknowledge each other in a different way. Perhaps we could bow instead like other cultures do. Do they suffer less colds than we do? And if we give up hand shaking as a common ritual to prevent the spread of diseases, then what will we be forced to give up next? Will we be required to give up kissing? Come on someone, let's find the cure for the common cold and the flu -- I don't want to give up kissing!