I suspect that “chance of dying” varies based on treatment, and that treatment in an overwhelmed Wuhan hospital is likely not the same as treatment as, say, the first patient in France to get the disease.
I doubt this. WHile this may be true for a known disease, we have to ask, how much can the hospital do in this cases? It is a little bit like HIV in the beginning. Watch them die?
Interestingly, China is trying HIV medications on the infected.
For more info on ARDS and treatment in the context of the current pandemic, see this informative explanation: https://www.youtube.com/watch?v=okg7uq_HrhQ