In other words, we may be seeing a minimum. The daily new infections number dropped a bit yesterday after being about the same for a week much like the death rate. I'm hoping we are not going to see a reversal as has happened several times before.
If this continued dramatic drop from the holiday peak is due to vaccination, I would expect it to continue to numbers near zero allowing track and trace to be done effectively... if there isn't too much push back from those who can't understand the value in the tool.
I am concerned by this plateau as it may be a result of the more infectious strains making the rounds in the 50% of the population not previously infected or vaccinated. I found a page where the CDC is tracking three varient, B.1.1.7, B.1.351 and P.1. I'm surprised at how low the numbers are, 20915, 453 and 497 respectively. Seems the Indian Delta B.1.617.2 variant is not present enough to bother reporting or maybe still at zero in the US. I do see reports that the L452R mutation found in the Delta variant is very present in California.
I'm presently in Puerto Rico where they generally treat the virus more seriously than in many places. In San Juan no one walks around without a mask and they take temperatures and provide hand cleaning at the entrance to every shop. To enter the island you have to have a negative test result within 72 hours or be doubly vaccinated. They were seeing a spike in late April, but by mid May it was completely under control. That sort of result could be achieved everywhere in the US if we were willing to actually work to that goal.