CFR of 3% - 5% for unprepared areas is not unreasonable. 0.6% is closer to the South Korean experience. https://github.com/CSSEGISandData/covid-19
SK's CFR[1] is currently 0.9% (8,162 cases; 75 deaths).
I haven't seen any source (or reputable estimate) that indicates a 0.2% CFR. So I'm asking for a citation or reference for where that number came from.
[1] data from John's Hopkin's tracker: https://www.arcgis.com/apps/opsdashboard/index.html#/bda7594...
CFR is the fatality rate for diagnosed people and it's gonna swing wildly depending on how many people are tested and diagnosed. And considering how this virus affects young and healthy people, there's good reason to believe that a lot of people get infected and never seek out medical assistance and never get diagnosed.
Even the best numbers we have are often skewed and misleading - as an example, we have a lot of good data from the cruise ship quarantined in Japan, but cruise passengers do not match the demographics of the general population.
All researchers, doctors should see this video & cited papers to evaluate potential.