It's ok. I can handle someone pointing out my typos. Don't always have time to review before posting. Do you know how long someone can be contagious with very mild symptoms? Where'd you get you "doctoral" degree to know that the virus would have run it's course if everyone stayed home? You are just a preload sup, you never went to "doctoral" school, so you don't have a right to talk about anything (Yes, I'm using your lame and incorrect argument against you to mock you and your lame, incorrect argument).
Did you know that an expedition to a science station in the south pole, wherein all the participants were healthy upon departure, and they remained in isolation from the rest of the world for months, ended up with an outbreak of a cold several weeks in. How could that possibly happen? Unless someone was partially immune, but carried the virus, then, when their immune system became compromised due to being inside for weeks, the virus started spreading because the partial immunity failed and the person got sick. You, and the experts you listen to know nothing about viruses, or how they spread, apparently.