before i lost my red cartridge, my nurse joy said that one of my pokemon is infected with pokerus. I didn't have a pc at the time so i couldn't look it up at the time, and i remembered when i got sick with a cold. I want to know from you guys if pokerus is a real thing and if it does, does it exist, is it in generation 1 games? My fire red was used so, I was wondering if it was a hack or something.