The virus is Dose Dependent.
The less viral load you are exposed to over longer distances, less time, and less crowded spaces, the less chance of a more serious reaction and hospitalization.
The greater viral load, the shorter the distance or longer time spent in closer proximity or in larger crowds and smaller or more saturated spaces, the greater risk of more severe reactions or hospitalization.
It is relative and proportional.
That is why the initial epicenters that had higher exposure to greater viral loads with less effective protection resulted in greater hospitalizations and deaths.
But after the exposures were more spread out and less concentrated in dense populations or high traffic through hospitals, then the rates decreased and were more manageable.
We still have high demand areas reporting shortages with medical response and resources.
But most of the risks are more spread out now.
High population areas in Brazil, India etc still have higher exposure to larger viral loads, where contagion keeps spreading regardless.
But the less exposure the better. It is still proportional, so the better filtration and less leakage or contamination, the less risk of severe escalation.
Mild cases still allow the advantage of gaining immunity but without the worse risk of escalated symptoms or hospitalization that increases with exposure to greater viral loads as in heavily saturated or concentrated environments.
