Posted in Web The COVID-19 Delta variant is now dominant in the U.S. See … October 18, 2021 The fast-spreading Delta variant is particularly prevalent in parts of the Midwest and Upper Plains. The Delta variant now accounts for more than 80% of cases in the Midwest. https://fortune.com/2021/07/07/the-delta-variant-is-now-dominant-in-the-u-s-see-the-states-where-its-most-prevalent/