The viruses causing the SARS outbreak of 2002-2003 and current COVID-19 pandemic are related betacoronaviruses. What insights were learned from SARS that can inform SARS-CoV-2 vaccine development? Focusing on important lessons from SARS vaccine development and two SARS vaccines evaluated in humans may guide SARS-CoV-2 vaccine design, testing, and implementation.

中文翻译：

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SARS-CoV-2：一首新歌唤起了旧旋律。

导致2002-2003年SARS爆发的病毒和当前的COVID-19大流行是相关的beta冠状病毒。从SARS获得了哪些见识，可以为SARS-CoV-2疫苗的开发提供信息？重点关注SARS疫苗开发的重要经验教训和在人体中评估的两种SARS疫苗，可以指导SARS-CoV-2疫苗的设计，测试和实施。