In Infected: The Twin Vaccine Collector's Edition, a new breed of virus has spread throughout the city of Oxford .The virus forces the area to be quarantined, and the first reported case was found in six-year old twin sisters, Tiffany & Theresa Morrisey. Tiffany never survived the infection but Theresa made a full recovery and is now believed to be the key to finding a cure. In the chaos of a city-wide evacuation, Theresa has gone missing. You must travel back to the abandoned city of Oxford to find her before the virus spreads globally. Though be wary...you're not the only one back in town. Play Infected: The Twin Vaccine Collector's Edition today!