it takes a few tries,but yes it works!
1 Pick virus
2 Start in Canada,Greenland,New Zealand,or Cuba (if not ,restart)
3 Sell starting symptoms (if any),other then sneezing.If you dont have sneezing , buy it
4 Buy 1-1-1-0 Resistances
5 Once your disease has spread 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 Pump 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, hemorrhaging
10 Wait until everyone dies
realy works!!! post if it works