Bulletin of the Atomic Scientists Using microbes to fight microbes By Laura H. Kahn, MD, MPH, MPP | 3 January 2012 “There are more microorganisms in and on our bodies than human cells. In fact, scientists estimate that microorganisms outnumber human cells by 10 to 1. These microbes cover our skin, nose, mouth, and gastrointestinal and urogenital tracts. Called the human microbiome, scientists are investigating the relationship between these microbes and disease. ... “ Please read more: