出现镰状细胞危象的镰状细胞贫血。

This is sickle cell anemia in sickle cell crisis.

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红细胞的数目，通常会少于正常，造成贫血。

The number of red cells is usually less than normal, resulting in anemia.

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非洲的黑人是患有镰状细胞(贫血)病的巨大群体。

Black people in Africa are the huge majority of those with sickle cell disease.

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非洲的黑人是患有镰状细胞(贫血)病的巨大群体。

Black people in Africa are the huge majority of those with sickle cell disease.

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