Environmental contamination by SARS-CoV-2 of an imported case during incubation period
Environmental contamination by SARS-CoV-2 of an imported case during incubation period
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DOI：
10.1016/j.scitotenv.2020.140620
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发表时间：
2020-11-10
影响因子：
9.8
通讯作者：
Jiang, Fachun
中科院分区：
文献类型：
--
作者：
Hu, Xiaowen;Xing, Yuhan;Jiang, Fachun
我们收集了隔离室消毒前后的环境表面样本，以评估前往中国青岛的输入性病例潜伏期内 SARS-CoV-2 的稳定性。总体而言，第一批环境表面样本（病例确认后 4 小时内）的 23 份中有 11 份（47.8%）检测出 SARS-CoV-2 阳性。而第二批环境样本（第一次消毒后）中，23 份（8.7%）中只有 2 份检测出 SARS-CoV-2 阳性。卧室中的大部分样本 (70%) 呈 SARS-CoV-2 阳性，其次是浴室中的 50% 样本，以及走廊中的 33% 样本。马桶内壁和下水道入口是污染最严重、病毒载量最高的部位。在后来确诊的 COVID-19 病例的潜伏期内，SARS-CoV-2 广泛分布在隔离室的物体表面。适当的消毒对于最大限度地减少这种高传染性病毒的社区传播至关重要。 (C) 2020 年由 Elsevier B.V. 出版
We collected environmental surface samples prior to and after disinfection of a quarantine room to evaluate the stability of SARS-CoV-2 during the incubation period of an imported case traveling to Qingdao, China. Overall, 11 of 23 (47.8%) of the first batch of environmental surface samples (within 4 h after case confirmation) were tested positive for SARS-CoV-2. Whereas only 2 of 23 (8.7%) of the second batch of environmental samples (after first disinfection) were tested positive for SARS-CoV-2. The majority of samples from the bedroom (70%) were positive for SARS-CoV-2, followed by 50% of samples from the bathroom and that of 33% from the corridor. The inner walls of toilet bowl and sewer inlet were the most contaminated sites with the highest viral loads. SARS-CoV-2 was widely distributed on object surfaces in a quarantine room of a later diagnosed COVID-19 case during the incubation period. Proper disinfection is crucial to minimize community transmission of this highly contagious virus. (C) 2020 Published by Elsevier B.V.