39 volunteers. 59 countries. 136 airports. With 400 swabs collected over 3 years. That is what it took for researchers to determine the course of bacteria that affect thousands of people worldwide. Multi drug resistant bacteria are growing more powerful each day with microbiologists struggling to find a way to combat these pathogens. Samanth Subramanian and Padmaparna Ghosh talk to Frieder Schaumburg, the microbiologist who ran this study to understand the fight against these superbugs. Music Credit: Josh Woodward and Chris Zabriske