Bacterial Fingerprints on Your Smartphone

Everywhere you go, you're bringing trillions of tiny, microscopic friends and foes along for the ride. This is what makes up the human microbiome. Recently, a research was published, showing that we leave behind microbial fingerprints on the screens of our smartphones. What significance does this have for our health? Dr. James Meadow, lead researcher from the University of Oregon, tells us.