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Recent developments in Neisseria meningitidis group A conjugate vaccines.

机译:脑膜炎奈瑟菌A组结合疫苗的最新发展。

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Meningococcal disease, both endemic and epidemic, remains a major cause of meningitis in many countries. Protective immunity is mediated primarily by bacteriocidal antibodies against the capsular polysaccharides for serogroups other than B, and against non-capsular surface components for group B. This article focuses on the development of conjugate vaccines for serogroup A, with special emphasis on the needs of Africa. The first licensed (1999) meningococcal conjugate was against group C in the UK and was > 90% effective in infants, children and young adults. The problem now is to develop a highly immunogenic group A meningococcal conjugate vaccine for use in developing countries as an alternative to the presently licensed group AC polysaccharide vaccine. Immunogenicity studies on the group A polysaccharide show the polysaccharide itself to be uniquely immunogenic in young children compared with other polysaccharides, making comparative studies with a highly immunogenic conjugate of considerable importance.
机译:在许多国家,流行性和流行性脑膜炎球菌病仍然是脑膜炎的主要原因。保护性免疫主要由针对B以外血清群的荚膜多糖和针对B组非荚膜表面组分的杀菌抗体介导。本文着重研究针对A血清群的结合疫苗的开发,特别强调非洲的需求。在英国,第一个获得许可(1999年)的脑膜炎球菌结合物针对C组,在婴儿,儿童和年轻人中的有效性> 90%。现在的问题是开发一种高度免疫原性的A组脑膜炎球菌结合疫苗,以替代目前许可的AC多糖疫苗在发展中国家使用。对A组多糖的免疫原性研究表明,与其他多糖相比,多糖本身在幼儿中具有独特的免疫原性,因此对具有高度免疫原性的缀合物进行比较研究具有重要意义。

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