
Delta most common COVID-19 variant in US, data show
Fox News
The highly transmissible Delta variant is the most common strain of the COVID-19 virus circulating in the U.S., new data showed, but federal health officials said fully vaccinated people don't necessarily need to put on face masks again.
"This is the first time we felt confident to say that Delta is the most prevalent lineage in the U.S.," said William Lee, Helix's vice president of science. He said the variant is on track to make up half or more of COVID-19 infections by early to mid-July. Despite the Delta variant's exponential spread, the Centers for Disease Control and Prevention said it is sticking with guidance issued in May that Americans no longer need to wear masks indoors if they are fully vaccinated.More Related News