> But we also don't know what antibody/T-cell levels... would = herd immunity.
OK, but wouldn't a random sampling at least provide an answer to what pct of the population was infected at some point? That seems like a great starting point.
OK, but wouldn't a random sampling at least provide an answer to what pct of the population was infected at some point? That seems like a great starting point.
My guess is that at the beginning, hospitals were only testing COVID-sick patients, and as time went on testing became more widespread.