That's up from 50 percent earlier this month, according to the CDC. Author: Sarah Hammond Updated: 12:47 AM EDT July 21, 2021 NORFOLK, Va. — The COVID-19 Delta variant now makes up 83 percent of cases in the United States, according to the CDC. Phyllis Moore said she and her husband, Jesse, couldn’t wait to get vaccinated. "My reason is because of my age and the other one is, I have diabetes," Phyllis said. "Best to be safe than sorry," Jesse added in agreement. On Tuesday, they brought their grandson to get his second dose of the vaccine before school starts. "This is very serious and it seems like if you’re just walking down the street, you can get the variant," she said.