TO THE EDITOR—In the excellent summary by Graepel et al [1] regarding the need to balance expediency and scientific rigor in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccine development, there is one additional aspect that merits urgent research attention and funding, namely, the problem of immunosenescence.

中文翻译：

---

免疫衰老和SARS-CoV-2疫苗开发。

致编辑— Graepel等人[1]在关于在严重急性呼吸综合征冠状病毒2（SARS-CoV-2）疫苗开发中平衡权宜之计和科学严谨性的需求的精彩总结中，还有一个方面值得紧急研究。注意和资助，即免疫衰老问题。