Metamorworks via GettyCOVID precautions have been lifted nearly everywhere, but that doesn’t mean the virus has gone away. It may be lingering in any given room that’s seen frequent visitors or is host to large crowds. We’ll be living with COVID for the foreseeable future—including any threatening variants that may arise. But a new device built by scientists at Washington University in St. Louis aims to help us manage that new future by providing real-time monitoring of indoor spaces and detecti