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. 2020 Oct 20;13(12):1862–1867. doi: 10.1016/j.jiph.2020.10.005

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© 2020 The Authors

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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Fig. 1 — A) Time course of the total daily number of COVID-19 inpatients (grey bars) and course of the reported new infections in the region of Regensburg (red bars) (infections in the region Regensburg are based on the date of laboratory confirmation). B) Time course of SARS-CoV-2 infections in employees (red bars) and nosocomial infections in patients (black bars) before and during the introduction of a strict hygiene bundle including general obligation for hospital staff and inpatients to wear surgical masks (strict hygiene bundle was introduced at March 26th (blue horizontal) and lasted until June (blue vertical)).