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. 2020 May 15;81(2):e96–e98. doi: 10.1016/j.jinf.2020.05.016

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© 2020 Published by Elsevier Ltd on behalf of The British Infection Association.

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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Maps of the study region, epidemiological characteristics, phylogenetic analysis based on the complete genome sequences of the SARS-CoV-2 from eight COVID-19 cases imported from abroad in Yunnan, China. (A) Eight cases of imported SARS-CoV-2 infection in travelers returning to Yunnan from overseas in 2020. (B) Demographic characteristics and respiratory symptoms. (C) Maximum-likelihood tree based on the complete SARS-CoV-2 genomic sequence obtained from positive serum samples was constructed using IQ-tree software. The genotypes of SARS-CoV-2 were divided into G, S, V and other. Virus clades are shown at right.