I touched someone's vibrator?

I was going through boxes in my garage looking for some old photo albums and I found a box and it had a black plastic bag in it. I felt the bag to see what was in it and then I opened it and I saw what I think is a vibrator. I touched it, lightly, but I'm still afraid I could get some kind of STD. I washed my hands very well but I do suck my thumb and I put my hands in my mouth a lot so I'm a bit... afraid.