Amy Spoering, Director of Biological Research at the biotech NovoBiotic Pharmaceuticals and who isolated from soil the bacterium Eleftheria terrae, the basis for the promising new antibiotic Teixobactin, holds bags of dirt sent to the lab by a citizen-scientist at NovoBiotic's labs in Cambridge, Massachusetts, U.S., November 22, 2016. To match Special Report USA-UNCOUNTED/DRUGS REUTERS/Brian Snyder