The highly transmissible Delta variant is the most common strain of the Covid-19 virus circulating in the U.S., new data shows.  An analysis of genetic sequencing data as of June 27 showed that the Delta strain, also known as B.1.617.2, now makes up about 40% of positive Covid-19 test samples.

Wall Street Journal report

** Outbreak.info is showing that the Delta variant has risen to about 47% in the last three weeks.

Chart courtesy of Outbreak.info

Image by Ronile from Pixabay