Assessment of inactivation procedures for SARS-CoV-2.

Assessment of inactivation procedures for SARS-CoV-2.
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评估SARS-COV-2的失活程序。

DOI:
10.1099/jgv.0.001539
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发表时间:
2021-03
期刊:
The Journal of general virology
影响因子:
--
通讯作者:
Garcia-Rivera JA
Garcia-Rivera JA
中科院分区:
其他
文献类型:
--
作者:
Auerswald H;Yann S;Dul S;In S;Dussart P;Martin NJ;Karlsson EA;Garcia-Rivera JA

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严重急性呼吸综合征冠状病毒2型(SARS-CoV-2)是2019冠状病毒病(COVID-19)的病原体,对世界各地的实验室和医护人员提出了挑战。处理SARS-CoV-2病毒感染者的生物样本需要采取严格的生物安全措施。在实验室内,对含有病毒的样本进行非繁殖性工作至少需要生物安全2级技术和设施。因此,SARS-CoV-2样本的处理在样本处理的生物安全性难以维持的地区和条件下仍然是一个主要问题,例如在农村实验室或严峻的实地测试场所。通过物理或化学方法灭活可以降低处理活病毒的风险,并提高检测能力,特别是在低资源环境中,因为样品处理更容易和更快。在此,我们评估了几种化学和物理灭活技术对SARS-CoV-2分离株从柬埔寨。该数据表明,所有化学(AVL,灭活样品缓冲液和甲醛)和热处理(56和98 °C)方法均检测到完全灭活的病毒载量高达5 log 10。
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of coronavirus disease 2019 (COVID-19), presents a challenge to laboratorians and healthcare workers around the world. Handling of biological samples from individuals infected with the SARS-CoV-2 virus requires strict biosafety measures. Within the laboratory, non-propagative work with samples containing the virus requires, at minimum, Biosafety Level-2 (BSL-2) techniques and facilities. Therefore, handling of SARS-CoV-2 samples remains a major concern in areas and conditions where biosafety for specimen handling is difficult to maintain, such as in rural laboratories or austere field testing sites. Inactivation through physical or chemical means can reduce the risk of handling live virus and increase testing ability especially in low-resource settings due to easier and faster sample processing. Herein we assess several chemical and physical inactivation techniques employed against SARS-CoV-2 isolates from Cambodia. This data demonstrates that all chemical (AVL, inactivating sample buffer and formaldehyde) and heat-treatment (56 and 98 °C) methods tested completely inactivated viral loads of up to 5 log10.
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