17 noviembre 2014
As many as 80 million bacteria are transferred during a 10 second kiss, according to research in journal Microbiome. The study also found that partners who kiss each other at least nine times a day share similar communities of oral bacteria.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gWkDhJf5S8Y/141116211033.htm
