All 3 were breakthroughs. And yes, you better believe they track down where it came from and that the CDC reports on it.
The moment all 3 were in the hospital, they starting the trace to figure out where it came from and who else they were in contact with.
One of the cases was a 40-year-old co-worker of my SO, another was my nephew's 19-year-old gf.
Our close friend, who had it for over 6 months, is in her 30s. Not sure this stuff is following the old rules. They are all in great shape. None of them are old. All had both shots.
The shots protect you against Delta, but they don't completely prevent it. And this new stuff is ridiculously contagious.
The hospital my SO works at expects another shutdown this winter. We will see. But they basically prepared everyone for it. Also, infection prevention already is sending out announcements for all employees to avoid not just indoor events, but outdoor events too.
I think we have to just get used to some of the restrictions for a while. But the hope is we don't need any more shutdowns.