I cant get into west europe...
If you, the player, can get all of Europe infected, I think public transit can carry the virus. Someone said that Even though they did not have airborne for transmission, but he could infect through planes, Airborne means through the air itself. The planes carry infected people, and once the infected get to an uninfected country, THEN the airborne comes into effect. I like this game. Put an airport in west europe, though. Public .transit cant get me in fast enough even with super low visibility