The Centers for Disease Control and Prevention (CDC) has changed its guidelines about masks and respirators a number of times over the past two years and gave its most recent update on January 14, ...

1. What changed in the CDC guidelines? The CDC currently recommends that you “wear the most protective mask you can that fits well and that you will wear consistently.” The question, then, is what ...

This is Work in Progress, a newsletter by Derek Thompson about work, technology, and how to solve some of America’s biggest problems. Sign up here to get it every wee k. In the past few weeks, the ...

University of Minnesota researchers are dangling the irresistible lure of free string backpacks at the Minnesota State Fair to study how masks fit different faces differently and offer varying ...

As the coronavirus pandemic rages on, experts have started to question official guidance about whether ordinary, healthy people should protect themselves with a regular surgical mask, or even a scarf.