“Pre-existing chronic conditions make young countries succumb to COVID19.”-Max Planck Institute of Biochemistry
You ask proofs when I say, weakened कायाग्नि is the reason for even young succumb to viral infections. 
Is it COVID19 at work or pre-existing chronic hidden sicknesses at work and COVID19 just played the role of being instrumental?
If Europe and America are suffering due to old age population, we suffer due to our mindless race for Development led pollution, processed chemical food, stress. This is the reason, more and more sick are in so called Economic centers.
Now the critical question we should ask is: Did any specific change in environment happen in last 12 months that can make large population vulnerable to viral infections and spread it too? Or was this viral material spread as chemical warfare to hack the weak immune system randomly? I know, this sounds like a conspiracy theory but then you cannot ignore the possibility the way it is being handled globally.
~~~
Chronic diseases are more common at working-age in the Global South. The proportion of people with cardiovascular diseases in their early 20s is for example more than two times higher in Brazil and Nigeria compared to Italy.
https://www.pnas.org/content/117/25/13881
