Hopefully I was clear in saying my partial herd immunity theory is most definitely not a solution. I was just suggesting that one reason for the drop off might be that the most active spreaders have antibodies by now, so aren’t doing the spreading anymore.Hmmm... "partial herd immunity" is a nice concept but it only works if there is very little contact between partial herds. However, being in a "partial herd" or extended bio-bubble that includes a lot of people who are either vaccinated or have recovered will definitely help reduce the rate of spread within that group.
But it's like a forest fire that burns individual trees... and there is still plenty of fuel left. Very glad to see the country pulling back from the brink.
One of the things that is happening is that as hospitals have less of a crush of patients, more health care professionals can devote time to vaccination programs.
Still possible to have another wave with calamitous death counts... I hope it doesn't happen but I also hope people remain cautious.