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. 2020 Jul 31;82(1):159–198. doi: 10.1016/j.jinf.2020.07.033

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© 2020 The British Infection Association. Published by Elsevier Ltd. All rights reserved.

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 — Distribution of AU/mL in HCWs with varying degrees of exposure to SARS-CoV-2. 1: COVID units only; 2: Mixed COVID and non-COVID units; 3: No contact with patients; 4: Non-COVID units only. Dashline: cut-off of positivity. A P-value <0.05 is significant.