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Egyptians used blood letting to try to cure disease
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Greeks distinguished between arteries and veins.
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Viewed blood cells under a microscope.
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The first blood transfusion performed.
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Discovered three blood types: A,B,O.
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Discovered fourth blood type:AB.
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Established the first blood donor service.
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Developed a method to store blood for transfusions.
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Established the first blood bank.
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Discovered the Rh protein.
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First case of AIDS recorded in the Congo.
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Identified the virus causing AIDS.
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Development of ELISA test to screen for diseases such as HIV by detecting and measuring antibodies in blood.
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Scientists began developing blood-screening tests for infectious diseases.
