15% of cases among what demographic/clinical groups, though? I don't think it's anywhere near 15% (or even 1%) of cases in healthy people under 60 with no comp

15% of cases among what demographic/clinical groups, though? I don't think it's anywhere near 15% (or even 1%) of cases in healthy people under 60 with no complicating conditions, but I could definitely be wrong. I don't think our testing, especially in the US, is strong enough to draw any real conclusions given how many people are asymptomatic/mildly symptomatic.