There are lots of articles on viral load with Delta. Here is a shocking one:

https://medicaltrend.org/2021/07/27/the-viral...19-strain/

Also, Dr. Michael Osterholm has really good podcasts every week. I have not listened to the latest one yet but a friend says he has dire warnings. He's been pretty much right about this since a year ago February when he started sounding the alarms.

https://www.cidrap.umn.edu/covid-19/podcasts-webinars