mask guidance

A woman wearing protective mask walks at a sidewalk near business district in Jakarta, Indonesia March 2, 2020. REUTERS/Willy Kurniawan/Files
Coronavirus chronicle

Indonesia to drop outdoor mask mandate as Covid-19 infections drop

N95s offer ‘highest protection’, cloth masks ‘least’: CDC
Coronavirus chronicle

N95s offer ‘highest protection’, cloth masks ‘least’: CDC

Photo: Al Jazeera
Coronavirus chronicle

US schools should continue to use masks, says CDC

People walk without protective masks in Times Square amid the coronavirus disease (COVID-19) pandemic in the Manhattan borough of New York City, New York, U.S., May 4, 2021. REUTERS/Carlo Allegri/File Photo
Coronavirus chronicle

What is the science behind the new US mask guidance?