Reuters: Built of bacteria?

An article distributed by Reuters about the human gene catalog and how little is known about the many hundreds of different types of bacteria, viruses and yeast that inhabit people's skin, mouth, scalp and gut reports that in 2006, Steven Gill, associate professor of oral biology, estimated that 90 percent of the cells on the human body are actually bacteria. The story also appeared in news outlets in Canada, South Africa, Australia and England.