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. 2023 Feb 3;134:108–120. doi: 10.1016/j.jhin.2023.01.011

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© 2023 The Healthcare Infection Society. 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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Correlations between SARS-CoV-2 healthcare-associated infection (HAI) outbreak cases and SARS-CoV-2 cases in the general population in four different phases for all healthcare facilities, hospitals, outpatient care and rehabilitation facilities. Correlation coefficients with P-value (R and P) along with linear regression equations are described for each phase. y-Axes represent outbreak cases as outcome and x-axes the total number of SARS-CoV-2 cases in general populations as predictor. For phase 2, no correlation was calculated since the assumption of a linear relationship between cases in HAI outbreaks and the general population was not suited.