Municipal Centre of Disease Control and Prevention of Qingdao, Qingdao Institute of Prevention Medicine, Qingdao, Shandong Province, China.
Qingdao Women and Children's Hospital, Qingdao University, Qingdao, Shandong Province, China.
Ecotoxicol Environ Saf. 2021 Jan 15;208:111438. doi: 10.1016/j.ecoenv.2020.111438. Epub 2020 Sep 30.
Roles of environmental factors in transmission of COVID-19 have been highlighted. In this study, we sampled the high-touch environmental surfaces in the quarantine room, aiming to detect the distribution of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) on the environmental surfaces during the incubation period of coronavirus disease 2019 (COVID-19) patients. Fifteen sites were sampled from the quarantine room, distributing in the functional areas such as bedroom, bathroom and living room. All environmental surface samples were collected with sterile polyester-tipped applicator pre-moistened in viral transport medium and tested for SARS-CoV-2. Overall, 34.1% of samples were detected positively for SARS-CoV-2. The positive rates of Patient A, B and C, were 46.2%, 0% and 61.5%, respectively. SARS-CoV-2 was detected positively in bedroom and bathroom, with the positive rate of 50.0% and 46.7%, respectively. In contrast, living room had no positive sample detected. Environmental contamination of SARS-CoV-2 distributes widely during the incubation period of COVID-19, and the positive rates of SARS-CoV-2 on environmental surfaces are relatively high in bathroom and bedroom.
环境因素在 COVID-19 传播中的作用已被强调。在这项研究中，我们对隔离病房的高接触环境表面进行了采样，旨在检测在 COVID-19 患者潜伏期内环境表面上严重急性呼吸综合征冠状病毒 2（SARS-CoV-2）的分布情况。从隔离病房中采集了 15 个环境表面样本，分布在卧室、浴室和客厅等功能区域。所有环境表面样本均用预先用病毒运输培养基润湿的无菌聚酯棉签采集，并检测 SARS-CoV-2。总体而言，34.1%的样本检测出 SARS-CoV-2 阳性。患者 A、B 和 C 的阳性率分别为 46.2%、0%和 61.5%。在卧室和浴室中检测到 SARS-CoV-2 阳性，阳性率分别为 50.0%和 46.7%。相比之下，客厅未检测到阳性样本。SARS-CoV-2 在 COVID-19 潜伏期内广泛污染环境，浴室和卧室环境表面的 SARS-CoV-2 阳性率相对较高。
