If you want to have better comparable values, you should account that US have had too little testing and it just starts to increase. The US also has such health

If you want to have better comparable values, you should account that US have had too little testing and it just starts to increase. The US also has such health care system that it doesn't treat most potential patients the same, also potentially missing the cases completely. So the numbers of the "confirmed cases" in the US aren't to be trusted at the moment. What's more sure, in most of the countries in the world, is that if the tests are available at all, and the patients happen to be admitted to the hospitals with the symptoms, they will be tested, and the percentage of deaths will be comparable in all countries, and we should be able to assume that the hospitals will report the deaths of the patients tested positive. In short, now that the numbers of deaths increase, these numbers reflect better the issues we are facing than just the reported cases. We should estimate the number of "comparable" cases across the countries or areas with different capabilities from the numbers of deaths, at least for the countries and areas which have at least enough tests to test those admitted with symptoms and report the dead, and once these numbers aren't too low to be too noisy. I've demonstrated some of my simple calculations in my other messages, so you can check these too.