Sorry to be off topic.
You cannot compare the numbers like you are because each country’s cases are determined in a different way, e.g. the UK’s method until recently was to only test those presenting themselves to a hospital, I.e. if the symptoms had persisted for 7 days and your condition had been deteriorating then present yourself at hospital where you would be tested. The U.K. does not test outside the hospital environment (until the last week, when frontline health workers can go to Drive-throughs). Then you are testing these same key workers multiple times. This is basically what Spain, France and Italy have been doing. The outcome of this is the mortality rate looks much higher than it is. It is certainly not 14%. The WHO has suggested it is something less than 1%.
The CMO in the U.K., thinks the actual infection rate is probably nearer “high single digit percentages” of the population now (6M+) rather than the 80K+ “confirmed cases.” Until the antibody tests exists no one can know. What is a sobering thought is that at least in the U.K., of those who enter hospital, around 20% need an ICU, and 50% of those who end up there are dying.
Every country has been isolating (too late in imo) and so the US numbers are not “lower” because of this and in time, sadly the mortality rate will be similar, because much depends on whether a health system can cope, e.g. New York. New York has been isolating for much longer than many US states and still probably hasn’t hit the peak?