so do these studies negate the more recent studies that show that masks help control viral load receipt thereby lessening severity of the disease? Or that masks prevent transmission since some of the virus is carried on larger particles? Which studies are real? I'm a teacher and in one classroom I've had just over half of the students contract the virus while I have remained negative; and in my other class just under 1/3 of the students tested positive while I keep testing negative and have no symptoms. I always wear a mask. My students don't always wear theirs.