answersLogoWhite

0

Sickle-cell disease, usually presenting in childhood, occurs more commonly in people (or their descendants) from parts of tropical and sub-tropical regions where malaria is or was common. The prevalence of the disease in the United States is approximately 1 in 5,000, mostly affecting Americans of Sub-Saharan African descent. In simplified terms usually black people.

User Avatar

Wiki User

14y ago

What else can I help you with?