I got covid (twice about a year apart)… lysine was recommended to me by a friend along with zinc, high dose C and D and fresh pineapple and quercetin. I didn’t have lysine on hand and was quickly feeling horrible the first time I got it so I actually door dashed it from cvs 😂 and I took it in a high dose. And the cocktail that I took really helped me. Or I would have been in trouble. Also I’m healthy, active, fit in my 30’s. I didn’t think the lysine was doing anything at the time but kept taking it anyway. Now reading this study I realize it was part of what was making me feel better.