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来源：雅诚德英语网
A heptavalent vaccine protecting against meningitis A and C was licensed in 2007.
预防甲型和丙型脑膜炎的七价疫苗于2007年获得许可。
A heptavalent vaccine protecting against meningitis A and C was licensed in 2007.
预防甲型和丙型脑膜炎的七价疫苗于2007年获得许可。