Are survivors left for dead immune?
Are survivors left for dead immune? Although the playable characters are immune, a comment by Bill suggests that they could become an Infected at any point. In addition, The Sacrifice comic presents the hypothesis that the Survivors are Carriers of the Infection―and as such are a positive danger to any uninfected humans they encounter.
Why are the l4d Survivors immune?
The reason for Valve intermixing ‘Carrier’ and ‘Immune’ is likely due to the fact that there is no true immunity to the ever-changing Infection. Anyone who does not see negative side-effects/ turns after encountering the Infected are most likely only immune due to being a Carrier.
Where did the green flu come from?
This may be most likely, as the Infection started in Pennsylvania, the original setting of the first game. It is also quite possible that the Infection was spread through Carriers which would mean that the Infected could move around large numbers of non-Infected humans and pass it on unintentionally.
Does the Spanish flu still exist?
The Spanish flu is said to have lasted from 1918 to 1919, but some sources put the date of the end of the pandemic in 1920.
