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SARS 患者血清对 SARS-CoV-2 缺乏交叉中和作用。

Lack of cross-neutralization by SARS patient sera towards SARS-CoV-2.

机构信息

Duke-NUS Medical School, Singapore, Singapore.

National Center for Infectious Diseases, Singapore, Singapore.

出版信息

Emerg Microbes Infect. 2020 Dec;9(1):900-902. doi: 10.1080/22221751.2020.1761267.

Abstract

Despite initial findings indicating that SARS-CoV and SARS-CoV-2 are genetically related belonging to the same virus species and that the two viruses used the same entry receptor, angiotensin-converting enzyme 2 (ACE2), our data demonstrated that there is no detectable cross-neutralization by SARS patient sera against SARS-CoV-2. We also found that there are significant levels of neutralizing antibodies in recovered SARS patients 9-17 years after initial infection. These findings will be of significant use in guiding the development of serologic tests, formulating convalescent plasma therapy strategies, and assessing the longevity of protective immunity for SARS-related coronaviruses in general as well as vaccine efficacy.

摘要

尽管最初的研究结果表明,SARS-CoV 和 SARS-CoV-2 在基因上具有相关性,属于同一病毒种,并且这两种病毒使用相同的进入受体血管紧张素转换酶 2(ACE2),但我们的数据表明,SARS 患者的血清对 SARS-CoV-2 没有可检测到的交叉中和作用。我们还发现,在初次感染后 9-17 年,康复的 SARS 患者体内存在大量中和抗体。这些发现将有助于指导血清学检测的开发、制定恢复期血浆治疗策略,并评估 SARS 相关冠状病毒的保护性免疫的持久性以及疫苗的有效性。

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