The US might be undercounting but they are still reporting a high proportion of deaths compared to infections. In my mind it is more likely that mild or asympto

The US might be undercounting but they are still reporting a high proportion of deaths compared to infections. In my mind it is more likely that mild or asymptomatic cases are being missed than that deaths are being missed. So the number of deaths seems more likely to give an accurate indication of how far the outbreak has progressed. But indeed it's possible that those countries are simply not testing people suspected of having developed regular pneumonia, it's always tricky to compare these kinds of statistics when each country might use their own definitions and methods.