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维生素A缺乏(VAD)是人类三大营养性疾病之一,全球约有1.24亿儿童患此病。亚临床UAD(SVAD)更为多见,我国城市儿童发病率为20％,农村儿童达45％。本项目对SVAD儿童的免疫功能怍了系统检查,发现患儿存在广泛的免疫功能低下。
Vitamin A Deficiency (VAD) is one of the three major human nutritional disorders with about 124 million children worldwide suffering from the disease. Subclinical UAD (SVAD) is more common, with an incidence rate of 20% for urban children and 45% for rural children. The project on the immune function of SVAD children 怍 a systematic examination found that children with extensive immunocompromised.