Delta

I superficially looked at the CDC site, and learned 2 things about delta:

1. CDC sayszz the Delta Variant is one and a half times as contagious as Alpha (which I understand is the first new iteration after original Covid-19. What they mean is that if a person infected with Alpha would (under a particular set of circumstances) infect 2 additional persons; then a person infected with Delta, under the same set of circumstances, would infect 3 people. (Of course a major epidemic management goal would be to get the that number down to .9 or less.).