• J. Hosp. Infect. · Sep 2020

    Super-factors associated with transmission of occupational COVID-19 infection among healthcare staff in Wuhan, China.

    • Y Wang, W Wu, Z Cheng, X Tan, Z Yang, X Zeng, B Mei, Z Ni, and X Wang.
    • Department of Infection Management, Zhongnan Hospital of Wuhan University, Wuhan, China.
    • J. Hosp. Infect. 2020 Sep 1; 106 (1): 25-34.

    BackgroundGlobally, there have been many cases of coronavirus disease 2019 (COVID-19) among medical staff; however, the main factors associated with the infection are not well understood.AimTo identify the super-factors causing COVID-19 infection in medical staff in China.MethodsA cross-sectional study was conducted between January 1st and February 30th, 2020, in which front-line members of medical staff who took part in the care and treatment of patients with COVID-19 were enrolled. Epidemiological and demographic data between infected and uninfected groups were collected and compared. Social network analysis (SNA) was used to establish socio-metric social links between influencing factors.FindingsA total of 92 medical staff were enrolled. In all participant groups, the super-factor identified by the network was wearing a medical protective mask or surgical mask correctly (degree: 572; closeness: 25; betweenness centrality: 3.23). Touching the cheek, nose, and mouth while working was the super-factor in the infected group. This was the biggest node in the network and had the strongest influence (degree: 370; closeness: 29; betweenness centrality: 0.37). Self-protection score was the super-factor in the uninfected group but was the isolated factor in the infected group (degree: 201; closeness: 28; betweenness centrality: 5.64). For family members, the exposure history to Huanan Seafood Wholesale Market and the contact history to wild animals were two isolated nodes.ConclusionHigh self-protection score was the main factor that prevented medical staff from contracting COVID-19 infection. The main factor contributing to COVID-19 infections among medical staff was touching the cheek, nose, and mouth while working.Copyright © 2020 The Author(s). Published by Elsevier Ltd.. All rights reserved.

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