發稿單位：preprint manuscript submitted to NEJM 發稿時間：2020.03.09 撰 稿 者：authors from NIH, CDC, Princeton, UCLA 原文連結：https://bit.ly/2TJoGzT 一篇投稿到 NEJM 的論文 preprint 研究發現, 冠狀病毒可在氣溶膠中存活最多三小時， 銅表面存活四小時，紙板表面存活24小時，在塑膠及不銹鋼表面可存活2~3天。與SARS病 毒類似。 病毒在氣溶膠中的半衰期中位數為2.6小時，在不鏽鋼表面為13小時，在聚丙烯表面為16 小時。顯示氣溶膠與環境污染傳播是可能的。 該論文的作者來自美國 NIH, CDC, Princeton Univ. 與 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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