As the COVID-19 pandemic has progressed, it has become clear that many survivors—even those who had mild cases—continue to manage a variety of health problems long after the initial infection should have resolved. In what is believed to be the largest comprehensive study of long COVID-19 to date, researchers at Washington University School of Medicine in St. Louis showed that COVID-19 survivors—including those not sick enough to be hospitalized—have an increased risk of death in the six months following diagnosis with the virus.