1)Pick Virus. 2)Start in North America, East Europe,Cuba, or Greenland.If you do not get there restart. 3)Sell starting symptoms, if any, and buy vomiting. 4)Buy 0-1-1-1 resistances and all transmissions. 5) Once five countries are infected, sell sneezing to get rid of visibility. 6)Wait until ten countries are infected. If Madagascar closes its borders or is not infected in 30 days, restart. 7)Buy all four drug resistances, sneezing, coughing, and vomiting. 8)After a few days, unlock tiers 2-3, selling whatever symptoms it gives you. 9)Buy fever, fatigue, and hypersensitivity. 10) Wait until 3/4 population dies. Repost this to keep it alive. Seriously, this works! Might take a while, but pays off.