The blood drip on the HUD will flash with a white cross. The player will 'Spurt' blood out of them which can be seen by other survivors and by the player themselves in third person. The color will slowly fade from the screen based on the amount of blood the player has remaining.
This condition is cured with a bandage. A bandage can be used on yourself or on other players using the action menu. It is recommended that you have at least two bandages in your inventory at all times.
Currently a bug in the game: being unconsciousness after login without being unconscious before relogging/exiting the game.
An epi-pen will fix this condition instantly, however if the player has low blood they may head straight back into unconsciousness. It is therefore advised to bandage and fix all other conditions before the player is injected with the epi-Pen. Remember that an epi-Pen has to be used by another survivor to give yourself consciousness.
Stage 1: For the first 15 minutes the player will have a warning blood icon to show infection.
Stage 2: 15 to 22.5 minutes the player loses one blood per second.
Stage 3: 22.5 to 30 minutes the player loses two blood per second.
After 30 minutes or on disconnection the player becomes full infected. They can transmit the infection to others, lose three blood per second and their screen will shake.
Infection is also accompanied by a flickering radial blur that doesn't affect the center of the screen along with coughing.
Causes of Infection:
Chance of getting it from a zombie bite, particularly while bleeding. High chance from 'viral' zombie attacks.
Random chance when temperature drops below 36 degrees Celsius or when the temperature icon is flashing.
Spending time near by players who are fully infected.