Get the latest Science News and Discoveries

WHO Urges Vaccinated People to Wear Masks; CDC Still Says No Need


None

Get the Android app

Or read this on Scientific American

Read more on:

Photo of CDC

CDC

Photo of Masks

Masks

Photo of WHO

WHO

Related news:

News photo

Covid-19 news: High-grade masks cut infections in healthcare workers

News photo

Face masks that can diagnose COVID-19

News photo

School Shootings Are Up In 2021. Who Are The Killers In Our Midst?