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. 2018 Jun 13;120:63–69. doi: 10.1016/j.rvsc.2018.06.001

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© 2018 Published by Elsevier Ltd.

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 — S gene nucleotide alignments of CH/hubei/2016, CH/huaiyang/2015, CH/hubei/2016, and two reference PEDV strains: MN/USA/2013 (Pandemic strain) and CV777/Belgium/1978 (Prototype strain). NTD, N-terminal domain of the spike gene is hypervariable region of PEDV S gene. Black rectangle indicates the position of 3-nt deletions sites on PEDV genome.