Behind sealed bio hazard doors scientists race against time to sequence diseases and test curesr r r r r take samples and develop cures in the lab challenger r play on your own or as rival teams for 4 or 6 playersr r r r r extend the on the brink challenges with new virulent strain events or ther worldwide panic mutation scenarior r r r r once during your turn as an action you may give a city card that matches the colour of the city you are in to a player i