这些实验中所用的猴子事先都已接种了由死亡的被感染细胞制成的疫苗。

The monkeys used in those experiments had previously been immunized with a vaccine made from killed infected cells.

《柯林斯英汉双解大词典》

党有很多儿童被接种，有极少的麻疹病毒传播。

When lots of children have been vaccinated, less measles virus is spread around.

youdao

当认为自闭症与接种疫苗有关的原始文献被当做骗局不被信任，我朋友的反应是，游说人们相信接种疫苗是危险的将更加困难。

When the original paper on such a link was recently discredited as a fraud, my friend's reaction was that it will now be more difficult to persuade people of the dangers of vaccination.

youdao

So, you didn't know at the beginning, you knew you were enrolled in the trial, they gave you a shot, you didn't know whether you were part of the real group that got the test vaccine or the placebo group that got the control; turned out that Bonnie was part of the control group.

一开始你可能不清楚全过程,你只知道你参与了一项试验,他们给你打了一针,你不知道你是属于接种了,试验疫苗的真实试验组,还是属于被注射了安慰剂的空白对照组,结果显示,邦妮属于对照组

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