The Infected are the main antagonists of Left 4 Dead. The Survivors encounter the Common Infected the most, which are normal humans Infected by the Green Flu, which makes them attack the Survivors as soon as they see them.
The Infected are the main antagonists of Left 4 Dead. The Survivors encounter the Common Infected the most, which are normal humans Infected by the Green Flu, which makes them attack the Survivors as soon as they see them.