coronavirus June 16, 2021 1:49 pm Coronavirus Delta Variant Declared a ‘Variant of Concern' The Delta variant of the coronavirus accounts for 10% of new U.S. cases and is known to spread more easily and cause more severe disease. US & World Videos 4:17 New California law will remove restaurant surcharges 0:43 Daily marijuana use outpaces daily drinking in the US, a new study says 3:45 Scarlett Johansson responds after ‘eerily similar' voice pulled from ChatGPT 3:02 JoJo Siwa got punched during 21st birthday celebration 1:54 WATCH: Animals snack on cicadas at Chicago zoo