Incidence and Prevalence Of Sickle Cell Anemia
Keep in consideration, That sickle cell disease is more common in certain ethnic groups. Generally, it is believed that the genetically different hemoglobin evolves protection against malaria because any individual with the sickle trait is likely to survive an outbreak of malaria rather than someone with normal hemoglobin.
Therefore, in the geographic areas where malaria is endemic, people with sickle cell trait were more likely to pass their genes. Sickle cell trait is also found in people of African descent, Portuguese, mainland Italians Spanish, Sardinians, Sicilians, French Corsicans, Greeks, Turks, and Cypriots. Moreover, among the African Americans, approximately one person out of every 500 is reported by sickle cell disease. About 8 percent or one person in twelve is also suffering from sickle cell trait.