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首页> 外文期刊>Vaccine >Rabies human diploid cell vaccine elicits cross-neutralising and cross-protecting immune responses against European and Australian bat lyssaviruses
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Rabies human diploid cell vaccine elicits cross-neutralising and cross-protecting immune responses against European and Australian bat lyssaviruses

机译:狂犬病人类二倍体细胞疫苗引起针对欧洲和澳大利亚蝙蝠狂犬病病毒的交叉中和和交叉保护免疫反应

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摘要

The ability of antibodies elicited against the rabies human diploid cell vaccine (HDCV) to neutralise European bat Lyssaviruses (EBLV types-1 and -2), Australian bat Lyssavirus and classical rabies virus (RABV) has been evaluated using modified fluorescent antibody virus neutralisation (mFAVN) assays. Ninety-six percent (48 of 50) of the human post-vaccinated sera tested cross-neutralised these viruses (>or=0.5 IU/ml). Cross-protection experiments using inbred mice (RIII, k/k haplotype) were also assessed. Mice were given HDCV (twice by the intra-peritoneal route) and challenged (intra-cranially or peripherally) with a lethal dose (25 MLD(50)) of the individual viruses. The vaccine conferred statistically significant protection in 80--100% of animals challenged via the peripheral route. Levels of protection were lower following intra-cranial (i.c.) challenge. Our data provides strong evidence for broad spectrum cross-neutralisation and cross-protection of phylogroup I lyssaviruses using rabies HDCV.
机译:已使用改良的荧光抗体病毒中和方法评估了针对狂犬病人类二倍体细胞疫苗(HDCV)的抗体中和欧洲蝙蝠狂犬病病毒(EBLV类型1和-2),澳大利亚蝙蝠狂犬病病毒和经典狂犬病病毒(RABV)的能力( mFAVN)分析。测试的人类接种后血清中有百分之九十六(50个中的48个)交叉中和了这些病毒(>或= 0.5 IU / ml)。还评估了使用近交小鼠(RIII,k / k单倍型)的交叉保护实验。给予小鼠HDCV(两次腹膜内途径)并用致死剂量(25 MLD(50))的单个病毒攻击(颅内或外周)。在通过外围途径攻击的80--100%的动物中,该疫苗具有统计学上的显着保护作用。颅内(i.c.)攻击后,保护水平降低。我们的数据为使用狂犬病HDCV的phylogroup I狂犬病病毒进行广谱交叉中和和交叉保护提供了有力的证据。

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