Yes, I hope soon they can explain that phenomenon as well. My brother and his wife went to visit his wife's parents out of state. Not long after getting back my brother's in-laws called him to tell them to go get tested because they were sick. Sure enough my brother and his wife go get tested and they were Covid positive. My brother said if he hadn't have got the test, he would have never known that he had Covid. I wonder how many people there are like this who had their Covid come and go and never knew because they had no symptoms so they never knew to go get a test. If my brother's in-laws hadn't have called him, he never would have known. How many people got it from a gas station pump or something and never got sick so the numbers are really out of whack. It's hard to put a morbidity rate on Covid when you have no idea how many have been positive.
I have also heard people say that Covid scars the lungs. I personally do not believe this and wish the science would come out on this. It is my opinion that some people who get Covid have lung scarring because they have auto-immune issues they are unaware of. Many auto-immune disorders have no symptoms so people grow old not even knowing they have a problem. You can also have lung scarring from a massive response of your body's immune system when fighting an illness or infection, it doesn't even have to be from an auto-immune disorder. The actual lung scarring is a reaction of your body's immune system overreacting and killing it's own cells, it's not from the Covid virus. Your body attacks itself and it's own organs. So this lung scarring would have occurred to these people from any number of different illness and is not specifically caused by Covid. That's one of the reasons the 1918 pandemic was so deadly and killed healthy strong people is because it was your own body's immune system that actually killed you. People that have a strong or overstimulated immune system will be the one's who get the sickest when it comes to these types of viruses.