交叉保护作用（cross protection） 两种病毒感染一种寄主时先入侵的病毒能够保护寄主不再受第二种病毒的侵染。
（6）交叉保护作用（Cross protection） 交叉保护是预先接种一种病原物的无毒株或弱毒株可以使植物不受或少受同种病原物强 毒株的侵染、为害的现象。
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...交叉保护作用, 家族, 支系, 克隆表达 [gap=1906]Keywords: Pneumococci surface protein A(PspA), Clone and expression, Cross-immunoprotection, Family of PspA, Clade of PspA ..
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交叉免疫保护作用 Cross-protection effect
结果二者之间有一定的交叉保护作用。
The result was that the two isolates had certain cross protection.
WNV与JEV存在一定交叉反应，但是否有交叉保护作用则需要中和试验等进一步证实。
It is certainty that cross-reactions exist between WNV and JEV, whether cross-protection exists between them need to determine with neutralization test.
教训：甲流病毒似乎存在交叉保护的作用：虽然甲流对人体免疫系统是一件新鲜玩意儿，但六旬以上的老人却不容易感染，原因是此前另一种病毒肆虐过，让老人的免疫系统能抵御住甲流。
However, there seems to be some natural cross-protection going on with this virus: Though new to human immune systems, it doesn't seem to infect people over 60 very often.
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