基因免疫有抗体产生。

The specific antibodies were stimulated after gene immunization.

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病毒唯一的差别是在H2N2在它的表面蛋白之一，H，因为很多人一直有对未改变N2蛋白有抗体，它的影响没多严重。

The virus only differs from H2N2 in one of its surface proteins, the h; since many people still have antibodies to the unchanged N2 protein, its effects are less severe.

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目前大多数疫苗会使动物产生类似受感染的动物所产生的抗体，这使得鉴别带有抗体的动物是自然感染产生抗体还是接种疫苗获得这个问题有很大难度。

Most existing vaccines cause animals to produce the same antibodies as infected animals, making it difficult to determine whether an animal with antibodies was naturally infected or vaccinated.

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The advantage of this is that now you have four binding sites for antigen instead of just two.

这样的好处是一个抗体上,有四个抗原结合位点而不仅仅是两个

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So, these are better at binding to antigen because they have more binding sites on them.

连接抗体是对付抗原的有效方法,因为抗体表面将会有更多的抗原结合位点

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Now, why do you need a cell mediated immune response if you have an antibody response?

为什么你还要有细胞免疫反应呢,你已经有抗体应答了啊

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