http://www.newsweek.com/first-us-covid-delta-variant-cases-how-did-it-mutate-1617871

COVID cases in the U.S. have continued to surge in recent days, with new daily infections hitting more than 125,000 on August 5.

CDC data suggests new cases are being driven by the Delta variant of COVID, which was detected in more than 80 percent of new cases surveyed in the two weeks to July 31.