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Egyptians used bloodletting to try and cure diseases.
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Greeks distinguished between arteries and veins.
Arteries carry oxygenated blood from the heart, and have a thick, elastic muscle layer.
Veins carry deoxygenated blood towards the heart, and have a thin, elastic muscle layer with valves that prevent blood from flowing in the opposite direction. -
Leeuwenhoek viewed blood cells under a microscope.
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The first blood transfusion was performed. A transfusion is an act of transferring donated blood, blood products or other liquid into the circulatory system of a person.
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Karl Landsteiner discovered 3 blood types; A, B, O.
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Alfred Decastello discovered the fourth blood type: AB.
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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 transfusions.
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Dr. Bernard Fantus established the first blood bank.
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Karl Landsteiner discovered the Rh protein. It had immediate practical importance because it explained a relatively common medical disorder known as erythroblastosis fetalis.
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The first case of AIDS (acquired immune deficiency syndrome) was recorded in the Congo.
AIDS is a set of symptoms caused be infection, and they develop certain defining symptoms and illnesses. The last stage of HIV, where the infection is very advanced, and will lead to death if untreated. -
Robert Gallo identified the virus causing AIDS, HIV, a virus that attacks cells in the immune system and destroys a type of WBC called a T-helper cell. (Human Immunodeficiency Viruses)
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The development of the ELISA test, used to screen for diseases like HIV and measure antibodies in blood.
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Scientists began to develop blood-screening tests for infectious diseases.
