Toilets dominate environmental detection of severe acute respiratory syndrome coronavirus 2 in a hospital
Toilets dominate environmental detection of severe acute respiratory syndrome coronavirus 2 in a hospital
复制标题
DOI：
10.1016/j.scitotenv.2020.141710
复制
发表时间：
2021-01-20
影响因子：
9.8
通讯作者：
Li, Yuguo
中科院分区：
文献类型：
--
作者：
Ding, Zhen;Qian, Hua;Li, Yuguo
呼吸和粪便气溶胶分别在传播严重急性呼吸综合征冠状病毒2(SARS-CoV-2)中起到确认和怀疑的作用。在新冠肺炎2019年冠状病毒病患者专用医院大楼内，对厕所和非厕所环境进行了广泛的环境采样，并分析了相关的环境因素。总共在四个三床隔离室内外采集了107个地表样本、46个空气样本、两个呼出冷凝液样本和两个呼出空气样本。收集新冠肺炎患者的资料。对建筑环境设计和清洁程序进行了回顾。现场测量了气流和二氧化碳浓度。107个表面样本包括37个来自厕所的样本，34个来自隔离室其他表面的样本，以及36个来自医院隔离室外其他表面的样本。其中四个样本呈阳性反应，分别是两个病房门把手、一个卫生间马桶盖和一个浴室门把手。有三个是弱阳性，即一个卫生间马桶座圈，一个卫生间脸盆水龙头拉杆，和一个浴室天花板排气百叶窗。在46个空气样本中，有一个是从走廊采集的，呈弱阳性。两个呼出的冷凝液样本和两个呼出的空气样本呈阴性。病人厕所的粪便气雾剂含有医院内检测到的大部分SARS-CoV-2病毒，突显了表面和手部卫生对干预的重要性。(C)2020年由爱思唯尔出版。
Respiratory and fecal aerosols play confirmed and suspected roles, respectively, in transmitting severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). An extensive environmental sampling campaign of both toilet and non-toilet environments was performed in a dedicated hospital building for patients with coronavirus disease 2019 (COVID-19), and the associated environmental factors were analyzed. In total, 107 surface samples, 46 air samples, two exhaled condensate samples, and two expired air samples were collected within and beyond four three-bed isolation rooms. The data of the COVID-19 patients were collected. The building environmental design and the cleaning routines were reviewed. Field measurements of airflow and CO2 concentrations were conducted. The 107 surface samples comprised 37 from toilets, 34 from other surfaces in isolation rooms, and 36 from other surfaces outside the isolation rooms in the hospital. Four of these samples were positive, namely two ward door handles, one bathroom toilet seat cover, and one bathroom door handle. Three were weakly positive, namely one bathroom toilet seat, one bathroom washbasin tap lever, and one bathroom ceiling exhaust louver. Of the 46 air samples, one collected from a corridor was weakly positive. The two exhaled condensate samples and the two expired air samples were negative. The fecal-derived aerosols in patients' toilets contained most of the detected SARS-CoV-2 in the hospital, highlighting the importance of surface and hand hygiene for intervention. (C) 2020 Published by Elsevier B.V.