The world’s first therapeutic cancer vaccine was developed by a bone surgeon in the 1890s. Progress since then has been modest. But optimism is now running high, thanks to a technology being developed by some front runners in the Covid-19 vaccine race.
世界上第一支治疗性癌症疫苗是在19世纪90年代由一位骨外科医生研制的。自那以后，进展一直不大。但是，乐观情绪现在又高涨起来，这归功于新型冠状病毒肺炎（COVID-19，即2019冠状病毒病）疫苗开发竞赛的一些领跑者正在开发的一项技术。
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