Jonathan Eisen — American Scientist

Jonathan Andrew Eisen is an American evolutionary biologist, currently working at University of California, Davis. His academic research is in the fields of evolutionary biology, genomics and microbiology and he is the academic editor-in-chief of the open access journal PLOS Biology... (wikipedia)

We actually have 10 times as many cells of microbes on us as we have human cells... We are literally a teeming ecosystem of microorganisms.
What we need is a full field guide to the microbes that live in and on people, so that we can understand what they're doing to our lives. We are them; they are us.