Delta variant... convergent evolution?

[PeterB]

Delta now present in at least 37 states. What's interesting (not in a good way) is that it seems to be arising independently in different countries, and also we're already seeing additional mutations (what is now being referred to as "delta plus"). It's been described as coronavirus on steroids.

https://www.cnbc.com/2021/06/16/who-says...ating.html

https://www.livemint.com/news/india/new-...65835.html