Top news
Which type of face mask is most effective against COVID-19? | News
By Janelle Aguilera Ringer
Scientists Put Masks to the Test—With a Cell Phone and a Laser
By Megan Molteni
Neck Gaiters Do Not Curb COVID-19, Study Finds
By Suzanne Rowan Kelleher
All coverage
The 14 face masks tested in Duke University study, ranked from best to worst
By Catherine Kast & Kirsten Fleming