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Egyptians was the first to used bloodletting as a method to try to cure diseases.
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Greeks distinguished the differences between arteries and veins.
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Anton Van Leeuwehoek viewed blood cells under a microscope.
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The first blood transfusion was performed in 1795 (between a human and a dog).
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Karl Landsteiner discovered the three blood types: A, B, and O.
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Alfred Decastello was the one to discover AB blood after Landsteiner discovered the 3 most common ones.
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Percy Oliver established the first blood donor service.
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Mayo Clinic developed a method to store blood for transfusion.
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Dr. Bernard Fantus established the first blood bank.
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Later on through the years, Landsteiner did discover the Rh protein.
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The first ever case of AIDS was discovered in the Congo.
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Robert Gallo soon identified the virus that was causing AIDS.
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Test using ELISA was developed to screen for diseases such as HIV.
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Scientist soon began developing blood-screening tests for infectious diseases.
