发稿单位：preprint manuscript submitted to NEJM 发稿时间：2020.03.09 撰 稿 者：authors from NIH, CDC, Princeton, UCLA 原文连结：https://bit.ly/2TJoGzT 一篇投稿到 NEJM 的论文 preprint 研究发现, 冠状病毒可在气溶胶中存活最多三小时， 铜表面存活四小时，纸板表面存活24小时，在塑胶及不锈钢表面可存活2~3天。与SARS病 毒类似。 病毒在气溶胶中的半衰期中位数为2.6小时，在不锈钢表面为13小时，在聚丙烯表面为16 小时。显示气溶胶与环境污染传播是可能的。 该论文的作者来自美国 NIH, CDC, Princeton Univ. 与 UCLA。 Abstract: HCoV-19 (SARS-2) has caused >88,000 reported illnesses with a current case-fatality ratio of ~2%. Here, we investigate the stability of viable HCoV-19 on surfaces and in aerosols in comparison with SARS-CoV-1. Overall, stability is very similar between HCoV-19 and SARS-CoV-1. We found that viable virus could be detected in aerosols up to 3 hours post aerosolization, up to 4 hours on copper, up to 24 hours on cardboard and up to 2-3 days on plastic and stainless steel. HCoV-19 and SARS-CoV-1 exhibited similar half-lives in aerosols, with median estimates around 2.7 hours. Both viruses show relatively long viability on stainless steel and polypropylene compared to copper or cardboard: the median half-life estimate for HCoV-19 is around 13 hours on steel and around 16 hours on polypropylene. Our results indicate that aerosol and fomite transmission of HCoV-19 is plausible, as the virus can remain viable in aerosols for multiple hours and on surfaces up to days. 心得: 勤洗手很重要。 --

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