My Pokémon ended up with the PokéRus on a playing of Silver back around 2001-02 or so. I was surprised to see the special message from Nurse Joy in the Pokémon center, then was even more surprised to have Professor Elm call me as soon as I walked out of the Center, to tell me about the "virus" going around. At first, I didn't really think much of it, but I did notice each of my Pokémon had a small dot in their properties screens. Ironically, I seem to remember reading about PokéRus in a Pokémon magazine around the time G/S were first released in the States, but I didn't think it'd ever happen to me, so...