How quickly can COVID-19 spread among participants, volunteers and spectators at a curling event? Dr. Paul Luethy joins the show to tell us. Dr. Luethy is an Assistant Professor in Pathology at the University of Maryland School of Medicine and Assistant Director of the Clinical Microbiology Lab at the University of Maryland Medical Center. But he’s also a curler at Potomac Curling Club. And he volunteered at the USA Curling Club National Championships, which saw an outbreak of COVID-19 in March. He recently published a study that surveyed participants at that tournament to better understand the transmission of the disease during the event. We discuss his findings and what curling centers and event organizers can learn from them.