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.
没人可以轻易阻止公共卫生官员获得对抗艾滋病所需的工具，包括对艾滋病抗体检测的使用。
No one should lightly deny public health officials the tools they need to combat AIDS, including use of the AIDS antibody tests.
用此合成产物进行动物体免疫，获得了NT的多克隆抗体。
Then polyclonal antibody of nt was acquired from animal immunization of this production.
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