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. 2023 Jan 18;17:100219. doi: 10.1016/j.clinpr.2023.100219

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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. 2 — Double immunofluorescence assay in the placenta infected with SARS-CoV-2. Viral antigen detected mainly in the trophoblast layer of chorionic villi where CD68-positive cells (macrophages) were also observed. The red, green, and blue signals indicate Alexa 555, 488, and DAPI, respectively. SARS-CoV-2 IF, ×400 magnification.