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Partial protective effect of inactivated Japanese encephalitis vaccine on lethal West Nile virus infection in mice

机译:灭活的日本脑炎疫苗对小鼠致命的西尼罗河病毒感染的部分保护作用

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摘要

The effect of mouse brain-derived, inactivated Japanese encephalitis (JE) vaccine on West Nile virus (WNV) infection was examined using a murine model. Mice were immunized with JE vaccine twice and challenged with lethal doses of WNV. When mice were intracranially challenged with WNV, none of the immunized mice were protected. When mice were intraperitoneally challenged, the immunized mice were protected at higher immunization levels. Cross-reactive neutralizing antibodies to WNV were induced by immunization with JE vaccine; however, the levels were much lower than those to JEV. These results indicate that the currently available mouse brain-derived inactivated JE vaccine can induce partial protective immunity to WNV in mice.
机译:使用鼠模型检查了小鼠脑源灭活的日本脑炎(JE)疫苗对西尼罗河病毒(WNV)感染的影响。用JE疫苗免疫小鼠两次,并用致死剂量的WNV攻击。当用WNV颅内攻击小鼠时,没有免疫小鼠受到保护。当小鼠腹膜内攻击时,以更高的免疫水平保护免疫的小鼠。用JE疫苗免疫可诱导产生针对WNV的交叉反应中和抗体。但是,这一水平远低于JEV的水平。这些结果表明,当前可用的小鼠脑源灭活的JE疫苗可以在小鼠中诱导对WNV的部分保护性免疫。

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