U.S. Department of AgricultureONE IN A TRILLION The bacterium Enterococcus faecalis, which is less than 1 ?m long, is just one of the many microbes in our gut.The old adage that people are known by the company they keep probably doesn’t refer to the trillions of microbes living on the human body—but it might as well. Although you may be influenced by the thousands of ... Continue Reading