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麻疹是儿童常见的一种急性传染病,其传染性很强,以皮丘疹、发热及呼吸道症状为特征。我国自20世纪60年代初应用减毒活疫苗以来,发病率显著下降。但每年在全球仍有
Measles is a common acute infectious disease in children and is highly contagious and characterized by papules, fever and respiratory symptoms. Since the application of live attenuated vaccines in China in the early 1960s, the incidence has dropped significantly. But every year there are still in the world