两项试验均未发现受接种者中出现其他超额严重不良影响。

In neither trial was there evidence of an excess of other serious adverse effects among vaccine recipients.

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迄今为止所有的嗜内脏型病例都发生于初次接种者，在接种后2-5天内发病。

All cases of viscerotropic disease to date have been reported in primary vaccinees, starting 2–5 days after vaccination.

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来自美国的近期证据也表明，年龄较大的接种者发生嗜神经型疾病的危险较大。

Recent evidence from the United States also suggests a higher risk of neurotropic disease in older vaccinees.

youdao

Basically, injecting it into some test subjects, making sure that they didn't get diseased from it and looking at antibody responses to see if it worked and it did.

他们把疫苗接种到测试对象体内,确定接种者不会感染疾病,同时观察抗体的应答反应,了解疫苗是否有效

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