The data reported across certain countries may not be directly comparable due to differences in testing, reporting processes and other discrepancies. Most of m

The data reported across certain countries may not be directly comparable due to differences in testing, reporting processes and other discrepancies. Most of my asian friends believe mask wearing and willingness to self isolate (sick, so stay home/wear mask/try not to spread) are a factor when comparing to western nations. Vitamin D may also play a part. I recall there were studies indicating that Vitamin D deficiency could be a problem for those who get sick. I have no data here but I suspect westerners are far more likely to be Vitamin D deficient. I would not be surprised as well if general health across populations has a relationship (diabetes, obesity etc). Aside from that, regulation and enforcement matter. Australia kept cases under control early on but their recent delay in locking down hard with new cases has meant the spread continues out of control. New Zealand on the other hand had a very strong lockdown and try to enforce quarantine and case management. So far cases are controlled and limited only to those returning from overseas. Community spread was eliminated (to date).