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. 2018 Sep 8;525:1–9. doi: 10.1016/j.virol.2018.08.022

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© 2018 Elsevier Inc.

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 — FIPV Black-induced cell cytopathic effect varies between infected cell types. A) Progression of cell cytopathic effects (CPE) induced by FIPV Black over time in Fcwf-4 and AK-D cells (MOI=0.1). Localized cell syncytia formation (black, closed arrows) and discrete cell death (white, open arrows) indicated on brightfield images taken at 20x magnification. B) Immunofluorescence staining of FIPV Black-infected Fcwf-4 CU and AK-D cells (MOI=0.1) at indicated hours post-infection (hpi). Nucleocapsid protein staining (Red; CCV2-2) indicates infected cells; nuclei stained in blue (Hoesch3342). Images taken at 60x magnification.