-
They used bloodletting to try to cure diseases
-
They distinguished between arteries and veins
-
He viewed blood cells under a microscope
-
The first blood transfusion was preformed
-
He discovered three blood types: A, B, O
-
He discovered the fourth blood type: AB
-
He discovered the first blood donor service
-
They developed a method to store blood for transfusions
-
Established the first blood bank
-
He discovered the RH protein
-
First case of AIDS recorded in the Congo
-
He identified the virus causing AIDS
-
The development of ELISA test to screen for diseases such as HIV
-
Scientists begin to develop blood-screening tests for infectious diseases
