Saracen said:If the PC's find an antidote it doesn't mean that the adventure/campaign is over. They might just locate enough to cure themselves. Also, just because they have it doesn't mean that they can synthesize it and cure the population at large.
Also, the CDC could show up, but what's to say they are successful in curing it. Sure, the could quarantine the town take a sample of the virus and attempt to create a vaccine but they might not be able to. There are plenty of viruses that we haven't a cure for.
And even with the PC's being cured and the CDC showing up there would still be plenty of people already zombified to fight through.
Also, who's to say that the CDC are friendly to the PC's. Perhaps the CDC think the PC's started the infection and want them for questioning. The CDC might just be another obstacle to overcome.
Finally, I don't know about you but if some multi-national corporation tried to turn me into a zombie I might want to get a little revenge on the board of directors and that could be a whole new adventure.
Angelsboi said:I dont know what to do after that. There hasnt been an outbreak yet and the vial contains a new strain, the Y7 Virus.
Also, Chief Ironside Burns (RCPD) KNEW what was going on. So whose to say the cops wouldnt take it and then hand it over to their chief, who, hands it to Umbrella (RE 2).

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.