I started at australia, and worked too. Had a lot of luck infecting madagascar at day 24, and NZ at day 27-28. Repeat steps untill u have luck and get madagascar cuba NZ and greenland...
1) Pick Virus. 2) Start in Canada, Greenland, New Zealand, Cuba (if not, restart.) 3) Sell starting symptoms (if any), other than sneezing. If you don’t have sneezing, buy it. 4) Buy 1-1-1-0 resistances. 5) Once your disease spreads to a few countries, sell sneezing to get rid of visibility. 6) Wait until all countries are infected. If Madagascar closes or this is after day 30, restart. 7) Buy all 4 Drug Resistance and buy sneezing, coughing, vomiting. 8) After a few days, unlock tier 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 if it worked for you. Dude, it really does work! Try it if you need the impossible badge.