Coronavirus cancellations show evidence-based decisions are rare during epidemics

Photo by David Zorrakino/Europa Press via Getty Images Giant corporations, governments, and individuals are all making decisions that they hope will reduce the risk of spreading the new coronavirus — but not all of those tough calls are solely based on the latest health information. The factors that led people to enact two-week travel restrictions, or stock up on face masks, or cancel the Mobile World Congress are far more complex, and are based just as much on what scientists don’t