Originally Posted by

**Seattle Forrest**
**Of course** covid kills more people with risk factors for dying of covid. All diseases work like that.

Of course the principle is obvious, but I hadn't seen any graphs that demonstrated how radical the difference is in this case.

All of those fatality rates are likely overestimates because of the denominator problem, but I would bet the denominator problem is least significant for the oldest age groups, which will make the differences even more stark.

By which I mean, the younger somebody is, the more likelihood somebody can get the infection, and never know it -- or suspect it, but ride it out alone ok and it never gets tested so it never gets included in an official count of cases. Who knows, maybe the full-population number for 35-49 is really 0.3% instead of 0.6%. Or maybe it's 0.4% or 0.5%. I don't know if anybody has the data to say confidently. But I bet there are way fewer 80+ cases slipping under the radar, and the true fatality number for that oldest bracket is probably north of 20%.