Goodass game
I must say, this is a simply wondeful game, and it is much easier than the original and EOM.
Graphics were much smoother, many more options, etc.
Alright, here's a small guide to how to win: start as a bacteria, and put all your points into drug resistance, and make sure you never do water resistance and waterbourne, also, turn off all symptoms to reduce visibility to 0, or almost. Make it airbourne only, no other ways of spreading. Check to see that all countries have been infected before activating your symptoms. You want to make sure every country is infected so you don't need to worry about borders closing.
After every country has at least 1 infected, try to choose the least visible symptoms, even if the disease has been spotted. The more visible, the more countries will spot it, and the faster the countries will make a cure.
I tired it and I got every area except for Madagascar. Because I unlocked ataxia by unlocking the third tier. Don't unlock any tiers until you get the entire world affected.