Blood on the Battlefield Trauma wards in combat zones often run short of blood necessary for transfusions. A DARPA program may soon yield vast amounts of synthetic, universally accepted blood that will provide medics with a perpetual supply. From Popular Science:
Perhaps ranking behind only bullets and water, blood is one of those things you really don't want to run out of on the battlefield. But better battlefield medicine -- as well as some of the more malicious combat techniques employed by insurgent guerrilla fighters -- mean more soldiers are surviving their injuries, and that puts military blood banks in a bind. But a DARPA program launched in 2008 is coming to fruition, potentially providing medics an endless stream of universally accepted O-negative blood through a process known as blood pharming.
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My Comment: Faster please.