1)Pick Virus. 2)Start in Canada,New Zealand,Cuba or Greenland.If you do not get there restart. 3)Sell starting symptoms if any and buy sneezing. 4)Buy 1-1-1-0 resistances. 5) Once three countries are infected sell sneezing to get rid of visibility. 6)Wait till all countries are infected.If Madagascar closes its borders or is not infected in 30 days restart. 7)Buy all four drug resistances and sneezing,coughing and vomiting. 8)After a few days unlock tiers 2-3 keeping whatever symptoms it gives you. 9)Buy fever,fatigue,diarrhea/pulmonary edema.hypersensitivity and hemorrhaging. 10) Wait until everyone dies. Copy and paste this- keep it alive. How do you think it got all the way here? IT WORKS! THAT'S HOW!