“And where is the data to support that many infections? Or you “feel it” must be so”
With all due respect to someone with more knowledge than me, It is based on my interpretation of speculation from numerous “experts”. Sure, there are tons of uncertainties in all of this at this point. I have seen studies that suggest as many as 50% of cases are asymptomatic. In addition, there certainly are symptomatic people who have mild enough symptoms for which they don’t seek tests, either because they prefer not to be exposed to others or because testing has been inadequate. I certainly know people in the latter category.
The NY Times tonight shows an estimated current 40 plus per cent immunity in a front-page chart prepared by PHICOR, a public health research group, with an approach to the low-end of the herd immunity target of 70% between April and June. But, as I suggested, variants will play a role as we move forward. And, of course, the right variant could make us start all over again. Very concerning indeed.
Maybe I missed your point. Are you suggesting that there may not be large numbers of asymptomatic or other people, with Covid, who never tested? Or that these people aren’t immune?