A new report from the Centers of Disease Control and Prevention concludes that the threat of antimicrobial-resistant infections is not only still present but has gotten worse — with resistant hospital-onset infections and deaths both increasing at least 15% during the first year of the pandemic. Research from the University of Georgia shows the refugee community is most at risk.

It was under control. And then it wasn't. In her new book Phantom Plague: How Tuberculosis Shaped History, VIdya Krishnan shows how "we repeat the same disease-spreading mistakes over and over."

Germicidal ultraviolet light technology has a proven track record against indoor transmission of tuberculosis and other airborne viruses. It's now being used in some restaurants and on subways.