Pandemic 2 is a realistic game where you need to observe the world's disease and control it from spreading worldwide. You'll have to observe all the planes and ships moving across the globe and click on the tabs on each country to learn the stats.
If you are playing this game for the first time, you better read the tutorials first. If you rush to play games without the tutorials, you won't be able to play a single level. Therefore, learn the tutorials and instructions before playing.