In vitro inactivation of SARS-CoV-2 by commonly used disinfection products and methods.

In vitro inactivation of SARS-CoV-2 by commonly used disinfection products and methods.
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常用消毒产品和方法对 SARS-CoV-2 的体外灭活

DOI:
10.1038/s41598-021-82148-w
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发表时间:
2021-01-28
期刊:
影响因子:
4.6
通讯作者:
Yan X
Yan X
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Xiling G;Yin C;Ling W;Xiaosong W;Jingjing F;Fang L;Xiaoyan Z;Yiyue G;Ying C;Lunbiao C;Liubo Z;Hong S;Yan X

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严重急性呼吸综合征冠状病毒2型(SARS-CoV-2)感染目前是全球性大流行,针对病原体耐药性的实验室研究有限。本研究旨在探讨实验室条件下选择的消毒产品和消毒方法对SARS冠状病毒灭活效果的影响。我们使用定量悬浮液试验来评价消毒剂/方法的有效性。有效氯浓度为250 mg/L、500 mg/L和1000 mg/L时,杀灭SARS-CoV-2所需时间分别为20 min、5 min和0.5 min。用17%浓度的二-N-癸基二甲基溴化铵(283 mg/L)和相同浓度的二-N-癸基二甲基氯化铵稀释600倍,仅需0.5 min即可有效灭活病毒。30%乙醇作用1 min和40%以上乙醇作用0.5min均能有效灭活SARS CoV-2。在56 °C下加热约30分钟,在70 °C以上加热约10分钟,或在90 °C以上加热约5分钟以使病毒灭活。氯化消毒剂、二正癸基二甲基溴化铵/氯化铵、乙醇和加热在实验室试验中均能有效杀灭SARS-CoV-2。SARS-CoV-2对消毒剂的反应与SARS-CoV非常相似。
Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection is currently a global pandemic, and there are limited laboratory studies targeting pathogen resistance. This study aimed to investigate the effect of selected disinfection products and methods on the inactivation of SARS-CoV-2 in the laboratory. We used quantitative suspension testing to evaluate the effectiveness of the disinfectant/method. Available chlorine of 250 mg/L, 500 mg/L, and 1000 mg/L required 20 min, 5 min, and 0.5 min to inactivate SARS-CoV-2, respectively. A 600-fold dilution of 17% concentration of di-N-decyl dimethyl ammonium bromide (283 mg/L) and the same concentration of di-N-decyl dimethyl ammonium chloride required only 0.5 min to inactivate the virus efficiently. At 30% concentration for 1 min and 40% and above for 0.5 min, ethanol could efficiently inactivate SARS-CoV-2. Heat takes approximately 30 min at 56 °C, 10 min above 70 °C, or 5 min above 90 °C to inactivate the virus. The chlorinated disinfectants, Di-N-decyl dimethyl ammonium bromide/chloride, ethanol, and heat could effectively inactivate SARS-CoV-2 in the laboratory test. The response of SARS-CoV-2 to disinfectants is very similar to that of SARS-CoV.
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