The term Sickle cell disease (SCD) describes a group of inherited blood disorders. People with SCD have abnormal hemoglobin, called hemoglobin S (for sickle), that they have in their blood cells.
Sickle cells are shaped like half moons and clog up arteries, veins, and capillaries in the human body.
In 1910, Herrick discovered and described a disease that caused blood cells to turn to a half moon shape.
The hereditary nature of the disease was finally discorvered and demonstrated in 1949 by dr. James V. Neel.
Effects on Humanity
SCD is not a contagious disease. It is a hereditary anemia and can potentially cause death.
The disease is inherited when the offspring receives one sickle cell hemoglobin gene from each parent.