Saving the world just got a little bit harder!Three new challenges await you in this new expansion for pandemic:-the hinterlands challenge: the diseases are spreading from animals to humans.-the Emergency events challenge: unpredictable events have nasty effects on the game.try To use quarantines to stop the spread of disease across the board.-the Superbug challenge: a fifth disease that cannot be treated threatens the world! produce vaccine doses after finding its cure in order to fight off this threat. You must eradicate the superbug disease to win.