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. 2007 Jul 19;30(5):309–327. doi: 10.1016/j.cimid.2007.05.009

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Copyright © 2007 Elsevier Ltd. All rights reserved.

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Fig. 1 — Characterization of the SARS-CoV. (A) Genomic structure of the SARS-CoV. (B) Schematic representation of the SARS-CoV virion. (C) Phylogenetic tree showing the relationships among the members of Family Coronaviridae based on the amino acid sequences of the spike proteins. MHV, HCoV-OC43, and BCoV belong to Group I of coronavirus, FIPV, TGEV, HCoV-229E, and SARS-CoV are classified into Group II of coronavirus. The SARS-CoV was highlighted in red. IBV forms an independent unique group, Group III. MHV, mouse hepatitis virus; HCoV-OC43, human coronavirus isolate OC43; BCoV, bovine coronavirus; FIPV, feline infectious peritonitis virus; TGEV, transmissible gastroenteritis virus; HCoV-229E, human coronavirus isolate 229E; IBV, infectious bronchitis virus.