Is it true that if you try on a bathing suit or lingerie in a shop that someone before you tried on (who was infected) you can contract an std? The only two shops in the area where I live do not use those protective liners on their products. I want to get new underwear soon but I've been told that there's a chance of contracting an std from the garments because they aren't washed after each person tries them on. :\
But really, no, there is no way you'll catch an infection from trying on underwear/bathers at a store. That's just not going to happen.
I don't think you can catch much from used underwear anyway. Most viruses need a moist environment to survive in. Once they leave that environment, they usually die. I'd test the crotch just to make sure it isn't wet before trying it on.