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麻疹是由病毒引起的传染病,易在儿童中广泛流行。本病全年都可发病,以冬春两季为多,主要是通过呼吸道传染。其传染性很强,几乎凡未患过麻疹的儿童都可感染麻疹。6个月以内的婴儿因由母亲获得比较高水平的抗体,故不易感染麻疹;但在大流行期或密切接触麻疹患儿的情况下,患麻疹者也非偶见。患过麻疹后一般都可获得稳固的终身免疫力。近年来,由于麻疹疫苗的广泛应用,在麻疹的预防方面已取得显著的成效,故切实加强麻疹的
Measles is a contagious disease caused by a virus and is very prevalent in children. The disease can be disease throughout the year, as many as winter and spring, mainly through the respiratory tract infection. It is highly contagious and measles is found in almost all children who have not had measles. Infants less than 6 months old have relatively high levels of antibodies due to their mothers and are therefore less susceptible to measles. However, it is not uncommon for infants to get measles during a pandemic or close contact with measles. After suffering from measles generally can get a solid lifelong immunity. In recent years, due to the widespread application of measles vaccine, significant achievements have been made in the prevention of measles. Therefore, the measles vaccine