I heard about the development of artificial blood. Does it mean that volunteer blood donors will no longer be needed?
Artificial blood is many years off in the future. The artificial blood that you hear about being produced today does have some uses, but these are fairly limited and restricted. They do not function nearly as well as human blood functions. Nature has developed an exquisite and complex system that we can’t duplicate with our present technology. Artificial blood can only perform a few of the functions of red cells and they don’t perform them very well.