Coronavirus: What's happening around the world on July 22

The U.S. Centers for Disease Control and Prevention (CDC) has not revised its masking guidance even as the delta variant of the coronavirus sweeps the United States, driving up infections, CDC director Rochelle Walensky said on Thursday.

Coronavirus: What's happening around the world on July 22

The U.S. Centers for Disease Control and Prevention (CDC) has not revised its masking guidance even as the delta variant of the coronavirus sweeps the United States, driving up infections, CDC director Rochelle Walensky said on Thursday.