The eternal fight

The year is 2034 and the world suffer a metamorphosis. The reason? A misterious virus that has advance at maximun speed towards the entire world. Where did it come, how it work, you and the survivors don't really care. Of course humanity hasn't surrender yet, most of the government have fallen, but there is still some that endure this moment in all parts of the world, and the places where the order has fallen, new great factions rise themselfs wanting to take the place that nation leave behind. Some of them better, some worse, but none totally good on the way they face this enemy. By the other side, unlike the movies, the infected aren't slow, dumb or weak, they aren't even rotting. In fact, they could be consider civilizated as a human, even an entire human with all his capacities, able to comunicate himself do strategies, make groups with herachy and able to use weapons, but with a uncontrollable even savage desire of human flesh, flesh that, for some reason they only want to take out of non infected humans. Appart from that they even have a weird kind of complex society that make them almost totally inteligent beings, now called themselfs: "Novaes" (new ones). Some of the characteristics that makes them different from humans, their veins are really notable, their eyes are red and their lips are totally broken they even tend to be bleeding most of the time.