维生素D缺乏与儿童感染性疾病

Relationship between vitamin D deficiency and infectious diseases in children

维生素D缺乏是全球普遍存在的公共健康问题。近年来，研究发现维生素D的功能已不仅仅涉及骨骼健康，还与许多疾病密切相关。本文简要介绍了维生素D及实验室测定方法、评价儿童维生素D水平的影响因素以及维生素D缺乏与儿童感染性疾病的相关性。

Vitamin D deficiency is a global public health problem. Vitamin D is well known for its classic role in the maintenance of bone mineral density. In addition, vitamin D is also closely related to many infectious diseases. This article describes the physiology of vitamin D and methodology for 25- hydroxyvitamin D or 25（OH） D. The factors that influence vitamin D levels in children and the relationship between vitamin D deficiency in children and infectious diseases are introduced.