Herd immunity has only been achieved once by 1980 smallpox was eradicated by herd immunity and Vaccination Globally. It only means you can no longer get it from one to one communication.
The CDC have stated that herd immunity can only be achieved if the Vaccination and people who contract Covid19 is between 70% and 90% but because of new Variants
Already here and new ones to arrive means it is highly unlikely to achieve
Got this from CDC - Mayo clinic and WHO
And Professor Whitey, Sage and a group of Scientists in GB not paid by Government
It’s out there for all to see and draw there own conclusions
Stay Safe
HH