[Fury]

From the Press Release: "Based on results of the first round of testing, the research team estimates that approximately 4.1% of the county's adult population has antibody to the virus. Adjusting this estimate for statistical margin of error implies about 2.8% to 5.6% of the county's adult population has antibody to the virus- which translates to approximately 221,000 to 442,000 (emphasis added) adults in the county who have had the infection"

[LilFarmer]

I have been hoping it was a lot more than that. 2.8-5.6 means 94 to 97% of the population do not have antibodies.

That means we are going to have a helluva second wave.

[calenel]

It also gives positive results for other corona viruses that are very mild and people wouldn’t have bothered with more than a cold. HKU1, for example, which would have spread unchecked.

And it is as yet unvetted, as far as such tests go.

So it may or may not be accurate, in its results (yep, you have had a corona virus...), but it is not very precise (… but we don’t know which one). That is something they teach you about in every college level freshman science course.

On the other hand, the upper bound estimate for the number of cases in the US, including recovered, dead, and pre- and asymptomatic, is around 16 million, or about 5% of the US population.