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. 2015 Feb 21;89(4):229–236. doi: 10.1016/j.jhin.2015.02.004

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Copyright © 2015 Published by Elsevier Ltd.

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Model simulating the impact of improvements in hand or environmental hygiene on patient-to-patient transmission in a 20-bed intensive care unit.⁷⁷ Black line: hand hygiene; grey line: terminal cleaning. MDRO, multidrug-resistant organism. Dashed line represents my approximate extrapolation from visual inspection of the data.