US coronavirus: ‘This is starting to look really ominous in the South,’ expert says, as US is among nations with highest rate of new cases August 14, 2021
US coronavirus: Delta variant is ‘Covid-19 on steroids,’ expert says, with cases increasing in nearly half of US states July 8, 2021
Coronavirus US: It’s time to rethink ‘one-size-fits-all’ approach to mask guidance, expert says, as Delta variant is spotted in every US state July 1, 2021