What does science really tell us about social distancing and the immune system? Is the current approach correct?
Medical experts show us the statistics.
The S (spine or spike) proteins (shown sticking out like mushroom stalks from the round virus) have high homology with the SARS virus. These are the proteins that make up the “key” that binds with the ACE2 receptors in humans to enter the cell.
This contributes to the organ failure we see with infected persons as it drives the virus into the cells of the lungs and other organs such as the heart and kidneys which also have ACE2 receptors.
From ice core samples, (measurements which were made prior to 1950), the levels have been between 250–300 ppm for thousands of years (quite stable). (There are some controversies over the accuracy of using ice core samples). So the general consensus backed by evidence would show that CO2 levels have increased sharply during the last few hundred years. So if we take 250ppm increasing to 400ppm we get 37.5% increase (or what is commonly heard, 40% increase over the last several hundred years).