Increased difficulty of blood transfusion.

[Downside 15]

So when a new character is made and spawned it generates a random blood type. The blood bags you loot could have different blood types also, so you have to match your blood type.

For example, if a unit of blood type A (which contains A antigens) is transfused into someone with type B (they have anti-type A antibodies in their blood), a transfusion reaction will occur.

When a transfusion reaction does occur, an antibody attaches to antigens on several red blood cells. This causes the red blood cells to clump together and plug up blood vessels. Then the cells are destroyed by the body (a process called hemolysis), releasing hemoglobin from the red blood cells into the blood. Hemoglobin is then broken down into bilirubin, which can cause jaundice.

Jaundice is a yellow color of the skin, mucus membranes, or eyes. The yellow coloring comes from bilirubin, a byproduct of old red blood cells. Jaundice can be a symptom of other health problems.

But if someone with type A blood receives type B, he may have a severe homiletic reaction. This can destroy many of his red cells and quickly kill him without treatment.

Let me know what you guys think of this possible idea. I'm hoping all my information is correct :P

[Louis (DayZ) 0]

I have no idea if you information is totally correct, but it sounds pretty legit, and i support your idea 100% (+1 from me). They should make all 4 blood types, so every perosn had a 1/4 when they found a blood bag, that they could use it, and even though it's unrealistic that it's 25% chance which blood type you get "born" with, it wouldn't be fair if you started with a rare blood type. So some unrealism is accepted, aslong as it's fair.

[Downside 15]

Blood type//Percent of Americans with this type//Who can receive this type

O+ // 37 // O+, A+, B+, AB+

O– // 6 // All blood types

A+ // 34 // A+, AB+

A– // 6 // A+, A–, AB+, AB–

B+ // 10 // B+, AB+

B– // 2 // B+, B–, AB+, AB–

AB+ // 4 // AB+

AB– // 1 // AB+, AB–

Read more: Blood Types — Infoplease.com http://www.infoplease.com/ipa/A0877658.html#ixzz1yTGrcasX

Maybe keep it simple to start off and test? Thanks for the support.