单词	sickle-cell anaemia
释义	sickle-cell anaemia /ˌsɪkəlsɛl əˈniːmiə / (also sickle-cell disease) noun [mass noun] A severe hereditary form of anaemia in which a mutated form of haemoglobin distorts the red blood cells into a crescent shape at low oxygen levels. It is commonest among those of African descent.Infection can produce severe anaemia and an aplastic crisis in people with sickle-cell anaemia or other abnormalities of haemoglobin.... In sickle-cell disease, the haemoglobin is abnormal and this causes a change in the shape of the red blood cells. The blood condition sickle-cell anaemia is most common in people from Africa, the Caribbean, the eastern Mediterranean, the Middle East and Asia.
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