That is concerning to me. Countries have reported a large number of those having negative outcomes is due to not receiving timely health care or having been triaged away (overwhelmed).
Here is what I have heard reported from a different forum on the Czech Republic numbers:
I have received relatively reliable numbers from the Czech Republic today. Czech Republic closed borders early and it has almost zero foreigners in the mix.
43,000 citizens were tested because they were not sure if they were infected or not
Out of those 3,000 were discovered to have Corona virus.
Out of 3,000 infected 23 people have died already.
30% of infected patients had no symptoms whatsoever, no temperature, no running nose, no confusion, no cough
55% of infected had very mild symptoms (running nose, no temperature, sore throat), no temperature, random cough
15% of infected had severe symptoms with temperature, severe cough
In their model they predict that in a general populations the numbers may become 10 times bigger. This sample was covering only people who came for the testing on their own.
Czech government issued an order to wear masks on public because nobody can be sure if they have it already or not. So far their death rates and infection rates are very low compared to Germany, Austria and other EU countries.