During the pandemic of 1918/19, over 50 million people died worldwide and a quarter of the British population were affected. The death toll was 228,000 in Britain alone.
That was 100 years ago, no hospitals with todays modern path labs and equipment, no computers spitting out instant spread sheets and graphs, no clever screening and testing available. How do we know those figures are anywhere near accurate?
Seems to me that given the technology we have now, it's all still guesswork and pigeonholing stuff into little boxes