COVID-19 Cases Fall by 20 Percent Across the US in Past Week: CDC

People come to be tested for COVID-19 at a test site in a file photo. David Dee Delgado/Getty Images

The number of new COVID-19 cases reported across the United States over the past week fell by about 20 percent, according to data provided by the Centers for Disease Control and Prevention (CDC).

The seven-day average of cases as of Sept. 28 was about 107,600; on Sept. 21, the seven-day average was about 128,700, the data show. Starting in August, the number of cases spiked due to the spread of the so-called Delta variant, federal health officials have said.