“I think we are there,” said William Lee, vice president of science at Helix, a company whose tests have identified a large share of variant cases across the country. “But at the end of the day, it's hard to say for sure,” given gaps and delays in the data. According to that study, B.1.1.7 cases are expected to double every week and a half as a percentage of the country’s total coronavirus cases. The study also concluded the variant was introduced several different times to the US, as early as late November. However, Helix’s data does not include robust samples from a number of other states, particularly in the Northeast and Midwest regions.

Source: CNN April 01, 2021 03:29 UTC