Plague Inc - a game where you evolve microbes to create a global plague

I’ve been playing this game for weeks. It does get repetivie though. The basic strategy for all the plagues, but one, is the same: Infect as many people as possible while remaining undetected(no symptoms) for as long as possible. Then swiftly turn your virus into a lethal one and kill humanity before the cure is found.

The main difficulty to me is always infecting and spreading to Iceland and Greenland. The makers of this game seem to have some bias favoring Iceland over all other western nations. Sometimes your virus will simply refuse to spread among Iceland’s population while the other Scandinavian countries fell quickly.

I still haven’t been able to destroy humanity with the bio-weapon. Which require you to delay or stop the lethality of the weapon so it can spread faster than it kills.