It seems to me that I have seen the elbow bump as being an even better method of reducing germ transmission.
And I do know that there was some research that found that a kiss transferred less germs than a handshake. I know there was the research because I remember a comedy show showing a business meeting descending (ascending?) into a rather passionate affair. Whether the research is correct, I don't know. Here is a reference (google is a great tool!)
I'm not very into handshakes myself. I mean I don't extend my hand first, though I will shake that of another. I recently introduced a couple of people just casually just offering names. They didn't shake hands. I don't know if that's a gender thing because these were women or if it was a contextual thing, as this wasn't a business introduction, just a polite one because I knew the two women from two different contexts. My guess is that men from an American or European background would feel more obliged to shake hands upon introduction. Currently, we're in a generation of obsessive hand-sanitizers, so I suppose many would prefer not to come into direct contact. I think it's an opportunity to bring gloves back as an indispensable fashion accessory.
@Antedeluvian: The residents at my mom's retirement village [...] employ the elbow bump.
Well -- I learn something new every day -- I just Googled this myself (you aren't the only one who knows how to Google LOL) -- according to this Wikipedia page, "An early popularization of the elbow bump began outside the Kalaupapa Leprosy Settlement in 1969..."