HIV

I could only find This Report. Normally the virus can only keep alive in an amount suitable to cause infection on an open surface for a few minutes.

Are you talking about a vibrator that has passed from one person and immediately used by a second person? If so, the answer might be: Possibly. If you are talking a vibrator used by one person, put down for an hour or a day, then used by a second person, the answer would seem to be: No.