To help stop coronavirus, everyone should be wearing face masks. The science is clear
A woman wearing a face mask stands on the Charles Bridge in Prague. Mask use went from 0% to nearly 100% in three days after a social media and influencer campaign. Photograph: Michal Čížek/AFP via Getty Images
You might walk into stores over the next few days and sicken dozens without knowing it. Some might die. Others will think they are dying before they recover.