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维生素A可以完善、维持呼吸道上皮细胞的正常代谢,增强呼吸道的抗感染能力,降低呼吸道感染发病风险。麻疹患者临床治疗时适量补充维生素A可以降低肺炎、腹泻、中耳炎等并发症的发生率和患者病死率,缩短麻疹患者病程,促进患者康复。婴幼儿接种麻疹疫苗时补充维生素A可以促进麻疹抗体IgG的产生,延长抗体的持续时间。合理补充维生素A能预防其缺乏,提高机体免疫力,减少麻疹的发生率。
Vitamin A can improve and maintain the normal metabolism of respiratory epithelial cells, enhance the respiratory tract anti-infective ability, reduce the risk of respiratory infection. Measles patients with adequate clinical treatment of vitamin A can reduce the incidence of pneumonia, diarrhea, otitis media and other complications and patient mortality, shorten the duration of measles patients and promote patient rehabilitation. Infants vaccinated with measles vaccine, vitamin A can promote measles antibody IgG production, to extend the duration of the antibody. Reasonable vitamin A can prevent its lack of improve immunity and reduce the incidence of measles.