Buy link.
Sorry. I remember reading about this game, but I never tried it. Interesting concept, but I suspect it gets boring after a whlie.
Edit: Hmm, I'm actually not sure if that buy link is for Virus: The Game (which is the one you're talking about). It probably isn't, but it's a bit hard to be sure with no box-shot.
Edit 2: Here is a new
buy link. I don't speak German, though, so I don't know if it's a German version. I did manage to understand that it wasn't used, though.