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He is internationally known for his work with vaccines.他以其疫苗研究闻名国际。In certain rare circumstances, these vaccines could activate disease.在极少数的情况下，这些疫苗会激活疾病。More vaccines are needed to replenish our stocks.还需要更多的疫苗来补充我们的储备。Scientists are attempting, by genetic manipulation, to produce more effective vaccines.科学家们正试图通过基因控制的方法来培育更有效力的疫苗。The vaccines were kept cool in refrigerators.疫苗放在冰箱中冷藏。The government stockpiled vaccines to prepare for a flu epidemic.政府为应对流感大量储备疫苗。My guess is that the chance that these vaccines will work is zero.我猜测这些疫苗根本不可能奏效。Anti-malarial vaccines are now undergoing trials.抗疟疾的疫苗正在试验阶段。Twelve potential vaccines are currently being tested on human volunteers.目前有十二种可能的疫苗正在人类志愿者身上进行试验。They argue that the possible risks attached to such vaccines vastly outweigh any advantages.他们认为这些疫苗可能存在的风险要远远超过它们带来的益处。They have a store of biodefence drugs and vaccines that can be flown anywhere in the nation within twelve hours.他们在某处存储了用于生物武器防卫的药品和疫苗，可以在十二小时内空运至全国任何地方。Apart from vaccines, there is no known way to protect against meningitis.除了使用疫苗外，还未发现别的预防脑膜炎的方法。The disease has been eradicated from the Western world through the use of vaccines.这种疾病在西方国家已经通过使用疫苗根除了。Do we know enough about the safety of these vaccines?我们对这些疫苗的安全性有足够的了解吗？We need to persuade parents that almost all vaccines are harmless.我们要说服家长，几乎所有的疫苗都是无害的。 |