I've always thought wearing a mask could, at bare minimum, reduce your chances by 50%. If the infected person is also wearing one is has to be up in the 90"s. Add in being aware to wash hands and use sanitizer---pretty safe. To me, thats common GD sense in any situation. The thing that threw me for a loop was Fauci, the CDC, and the surgeon general repeatedly saying masks are a bad idea. The SG said on multiple occasions that you increase your risk of contracting covid by wearing one. Fauci blatantly said people should not be walking around wearing masks. Its not like wearing masks around infectious people is a novel idea. Why do you suppose they repeated this fact for a month or two before doing a full 180? These are our health experts---pretty sure they should have the basics down.