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。
2
A tetravalent meningococcal meningitis vaccine (licensed in the United States) and a heptavalent vaccine protecting against meningitis A and C (to be licensed in 2007);