If we're being specific, they reduce transmission, they don't wholesale prevent it. My frustration is people will look at "decreases mortality by xx%" or "decr

If we're being specific, they reduce transmission, they don't wholesale prevent it. My frustration is people will look at "decreases mortality by xx%" or "decreases spread by y%" and conclude that it's not worth taking even when the risks are slim to non existent. Hacker News is a place where we talk about billion dollar industries that are built on someone doing something 2% better than the other guy, but all that reason goes out the window when it comes to healthcare and it's killing hundreds of thousands of people.