Quarantine Teaser at Rockstar Social Club

GamingShogun writes, "Nope, its not for the movie Quarantine (at least, we don't think it is), however it could be a teaser for some new GTA IV downloadable content featuring zombies. How cool of a Halloween surprise would that be! For those of you who cannot read through the chain link, here is what it says: 'Contagious Disease - No one shall enter or leave this premises without the proper documentation issued by Eugenics Inc..."