metmike: I'm guessing that there are millions of false negatives!
Since Omicron is so mild, most of them go away assuming they have something else and never get sick enough to go to the hospital.
My wife tested negative with 2 antigen tests and 1 molecular test.
I was negative with 1 molecular test but positive with 1 antigen test and negative the 2nd time.
We are what I consider false negatives that go down as never having COVID.
However, everything but the tests strongly indicates that we had Omicron.