The Infected (Left 4 Dead)

The Infected are the main villians of the game Left 4 Dead and Left 4 Dead 2. There are 3 types of infected in the game.

Common Infected are the most frequently faced members of the Infected, and the easiest to defeat. Their strength lies in the fact that they attack in groups, more commonly referred to as the Horde, sometimes as large as several dozen.

The Special Infected have been heavily mutated by the Infection, giving them "special abilities." Each generally has a unique ability that a Survivor cannot face alone, making them the true teamwork testers in this game. They are not attracted by car alarms or loud noise and have a higher degree of intelligence than Common Infected.

The Uncommon Common Infected are new forms of the Common Infected introduced in Left 4 Dead 2. They have the same general weaknesses and slightly higher health than most Common Infected.