Regarding masks...though I'm not medically trained, I am professionally trained in air filtration. too many people are hung up on the size of the virus molecule (measured in microns) vs the filtration rating of masks. Contrary to what many people think, the virus is not airborne in the strictest sense. It is carried by the droplets we spew when we breath, talk, sing, cough, burp, etc. So we don't necessarily need super fine filtration, just just need to stop, or at least slow down the droplets.
Take a bath towel. Just terry cloth, it will not stop air from going through it, it won't even stop water. But, it will slow it down. Have a friend hold a bath towel like a bullfighter would hold his cape. Then take a water hose with a nozzle and spray a stream at the towel. The majority of the water will ht the towel and fall straight down. Why, because the towel provides resistance even though it is not waterproof.
This is how masks work. They are most effective on the pitcher (the person having COVID) because the mask catches the droplets and slows the velocity of the air coming out of the person's mouth and nose. Having slowed the air down, it will not travel as far.
As for the catcher (a person trying not to catch COVID) a mask can catch some of the droplets from others, thereby offering some protection.
BUT, this probably works better in theory than in reality. Most people don't wear the mask correctly, many don't fit well and a lot of people pull them down below their noses. Reportedly, our nose receptors is the main way we catch the virus, not our mouths. We don't throw disposables away often enough, we don't wash the cloth masks, we fiddle with them constantly and have our fingers all over our noses and mouths. And BTW, these super thin cloths don't offers as much protection as having layers does. Having layers is probably more important than the fineness of the media is.
So in balance...do masks help? I think they do, but probably not nearly as much as politicians think they do. If we had a better standard for mask material, wore them correctly, kept them clean and/or changed, and kept our hands off our faces; they would probably be more effective.
Having said...it's just horrible what this has done to our liberties, the effect it's having on our children is heartbreaking. And it's given government, especially the political left, the weapon they needed to control the masses and throw elections. I won't go so far to say that the Democrats gave us COVID, but it's the greatest political give the Dems have ever gotten. And I'm still not convinced it was all just an accident.