Fist Pumps and Howie Mandel - Preventing Infection?

Many of us have seen Howie Mandel shake hands with a fist pump; he has a phobia about germs and thinks that is a more hygenic way to say hello.
So researchers decided to test that out. And it is true! One of them (probably a medical student!) dipped his hand in a bacterial broth, then fist pumped, high fived or shook the hand of another who was wearing a latex glove. Then the glove was analyzed for bacteria.

A high five reduced transmission by 50% and fist pump by 90%.

I still shake hands; but wash frequently!