I would like to protect my flash drives to being infected when I put it in another computers or devices. After some research, I found that I will not be able to reach this level of protection by using only software solutions (correct me if I'm wrong).
However, I don't have a flash drive with hardware protection and my only way to get one is importing (it will not be cheap). I also found that SD card's switches against writing is not in a hardware-level, so I kinda have to trust that a potentially infected computer will respect it, which is not a good idea.
So, my question is: is there a trustful way (using USB) to put my files into another computer without my USB stick (flash drive or SD card) being infected?