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2600 BCE
By Adi Woody, Period 5
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2500 BCE
Bloodletting
Egyptians used bloodletting to try and cure diseases. -
500 BCE
Arteries and Veins
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. -
Blood Under a Microscope
Leeuwenhoek viewed blood cells under a microscope. -
First Blood Transfusion
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. -
ABO Blood Types
Karl Landsteiner discovered 3 blood types; A, B, O. -
Blood Type AB
Alfred Decastello discovered the fourth blood type: AB. -
1st Blood Donor Service
Percy Oliver established the first blood donor service. -
Mayo Clinic
Mayo Clinic developed a method to store blood for transfusions. -
1st Blood Bank
Dr. Bernard Fantus established the first blood bank. -
Rh Protein Discovery
Karl Landsteiner discovered the Rh protein. It had immediate practical importance because it explained a relatively common medical disorder known as erythroblastosis fetalis. -
1st Case of AIDS in the Congo
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. -
HIV Discovery
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) -
ELISA Test
The development of the ELISA test, used to screen for diseases like HIV and measure antibodies in blood. -
Blood-Screening Tests
Scientists began to develop blood-screening tests for infectious diseases.
