National Institutes for Food and Drug Control, Beijing, China.
Front Immunol. 2021 Apr 12;12:669339. doi: 10.3389/fimmu.2021.669339. eCollection 2021.
The world has entered the second wave of the COVID-19 pandemic, and its intensity is significantly higher than that of the first wave of early 2020. Many countries or regions have been forced to start the second round of lockdowns. To respond rapidly to this global pandemic, dozens of COVID-19 vaccine candidates have been developed and many are undergoing clinical testing. Evaluating and defining effective vaccine candidates for human use is crucial for prioritizing vaccination programs against COVID-19. In this review, we have summarized and analyzed the efficacy, immunogenicity and safety data from clinical reports on different COVID-19 vaccines. We discuss the various guidelines laid out for the development of vaccines and the importance of biological standards for comparing the performance of vaccines. Lastly, we highlight the key remaining challenges, possible strategies for addressing them and the expected improvements in the next generation of COVID-19 vaccines.
世界已进入 COVID-19 大流行的第二波,其强度明显高于 2020 年初的第一波。许多国家或地区被迫启动第二轮封锁。为了快速应对这一全球大流行,已经开发出数十种 COVID-19 疫苗候选物,其中许多正在进行临床试验。评估和确定对人类使用有效的疫苗候选物对于优先考虑针对 COVID-19 的疫苗接种计划至关重要。在这篇综述中,我们总结和分析了不同 COVID-19 疫苗的临床报告中关于疗效、免疫原性和安全性的数据。我们讨论了制定疫苗的各种指导方针以及比较疫苗性能的生物标准的重要性。最后,我们强调了关键的遗留挑战、可能的解决策略以及下一代 COVID-19 疫苗的预期改进。