Paul and Alan earlier:
**We can sort of see the lag between cases and deaths in the worldometers data. South Korea is therefore interesting because cases have been level for a few weeks, as have deaths. From this it looks like the death rate is about 6%. Of course it could be less if not all cases are reported or if death is attributed to the virus in "error" ("with" rather than "from"). But equally it could be higher (again distinction between "with" and "from").
Maybe I am reading it wrong but the graph of Outcome of Cases says to me the death rate is trending down from 2.88% (Apr 1 value), so likely below that level. If people take at least a month to die, then the current deaths from the chart you reference are more likely coming from the surge period when daily new cases were around 500. That would put the death rate around 1.5%, a more plausible ultimate asymptote to the Outcome of Cases chart.
Number of new cases in South Korea has plummeted but number of new deaths hasn't changed much. Their treatment is getting worse!
A few somewhat morbid comments, but it's reality.
Do you have any data on the cause of death, e.g., pneumonia as opposed to infection/sepsis?
Some people may have survived the pneumonia, but became septic - perhaps due to being on the ventilators. Naturally, the ICU staff can fight this with antibiotics, but they won't always win.
Also, what would the normal process for decisions on taking someone off a ventilator be in S. Korea?
With or without a shortage of the machines, after a certain period of time, if someone is not starting to "ride the vent" as they call it here - which means breathing is being assisted by the vent, but the person is participating in the process (it's not being done completely by the machine) - then the hospital will discuss the outlook and plan of action with the family.
Can't really say that the care is getting worse there - more that nature and perhaps legal/medical decisions are taking their course at a certain pace right now.