Many musicians have put their performances on pause, but there is a demand for live events. Researchers in Germany staged a fake show with a real band and 1500 volunteers. They were given digital trackers, hand sanitizer with traceable dye, and fog machines to see how the virus might spread throughout an indoor event. They hope to use the results to create safety measures for live events around the world. Infectious disease specialist Dr. Brad Spellberg weighs in on this study.