Abstract
Human coxsackievirus A9 (CVA9) is a member of Enterovirus B species and may cause aseptic meningitis. The complete genome analyses of two strains CVA9 A242/YN/CHN/2009 and A108/YN/CHN/2009 isolated from aseptic meningitis cases in Yunnan Province, China, in 2009 were performed. These two strains shared 81.3 and 80.7, 81.0 and 81.1 % nucleotide similarity with prototype strain Griggs in the VP1-encoding sequence and the complete genome sequence, respectively. Through phylogenetic analysis and homogeneity analysis for twenty-eight VP1-encoding sequences, CVA9 strains could be divided into four genotypes and the Chinese strains might belong to genotype D. Similarity plot and bootscanning analyses showed evidence of recombination with other EVB viruses. In conclusion, persistent surveillance of circulating enterovirus might help understand the enterovirus evolution.
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This work was supported by the Basic Research Projects of Yunnan Province (2013FZ136).
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Communicated by Edited by Paul Schnitzler.
Jiansheng Liu and Yanju Zhu have contributed equally to this study and are the first authors.
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Liu, J., Zhu, Y., Pan, Y. et al. Complete genome sequence analysis of two human coxsackievirus A9 strains isolated in Yunnan, China, in 2009. Virus Genes 50, 358–364 (2015). https://doi.org/10.1007/s11262-015-1180-2
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DOI: https://doi.org/10.1007/s11262-015-1180-2