Humans Carry More Bacterial Cells than Human Ones

You are more bacteria than you are you

The infestation begins at birth: Babies ingest mouthfuls of bacteria during birthing and pick up plenty more from their mother's skin and milk—during breast-feeding, the mammary glands become colonized with bacteria. "Our interaction with our mother is the biggest burst of microbes that we get," says Gary Huffnagle, a microbiologist and internist at the University of Michigan at Ann Arbor.

http://www.sciam.com/article.cfm?id=strange-but-true-humans-carry-more-bacterial-cells-than-human-ones&sc=WR_20071204