The one thing I do know, however, is about contamination between meats and raw fruits and vegetables. There is so much information on what type of board to use (plastic or wood) and how to clean them in between uses (I hate using chemical cleaners on stuff you use food on), that it can get confusing.
So I decided to buy 2 cutting boards and keep them separate. I found these at Ikea (http://www.ikea.com/ca/en/catalog/products/30087148/) and they were cheap compared to others that I have seen. They have a lip on them (which is where I used permanent marker to distiguish the two). I think it is used to keep food from falling off, but I like to flip it over and use the lip against the countertop to make sure the board doesn't slide around. I have one for fruits and veggies so when I cut things for a platter, I don't have to panic about what was on the board before and if it was properly cleaned (I have adult kids so you never know!).
So there you have it...sparkling cutting boards. Now, let's cook something!!