Americans living in areas seeing new surges of Covid-19 have been advised to wear masks indoors again – even if they are fully vaccinated.
The Centers for Disease Control and Prevention CDC made the announcement today (Tues), citing the spread of the highly contagious Delta variant.
Johns Hopkins University reported that there were 89,418 new cases on Monday.
Masking has been a controversial subject in the US, and one politicised since the start of the pandemic.
The updated guidance says in public indoor settings, everyone should wear masks to prevent the spread of the Delta variant.