Introduction: Coxsackievirus A10 (CVA10) is a non-enveloped, positive-sense single-stranded RNA virus classified within the Enterovirus genus in the Picornaviridae family. It is among the pathogens that can cause hand, foot and mouth disease. This study aimed to analyze the temporal and spatial distribution of CVA10 in China to understand its epidemiological characteristics of CVA10.
Methodology: We collected the VP1 sequences of CVA10 from January 1, 2004, to December 31, 2019, from the GenBank database and created the global map using MapChart. We selected 56 known CVA10 genotype sequences. Then, MEGA6.06 was used to construct a phylogenetic tree with the collected gene sequences and the known reference sequences for comparative analysis to assess the distribution of CVA10 genotypes in different countries between 2004 and 2019.
Results: CVA10 has been widely detected or reported globally. In China, the prevalent genotype of CVA10 was mainly genotype B before 2008 and genotype C after 2009. In other countries, the prevalence of genotype D was dominant, followed by genotypes C and F, and the prevalence of CVA10 varied from continent to continent.
Conclusions: Monitoring CVA10 genotypes or evolutionary branches should be strengthened, and the study of epidemic genotype characteristics should be enhanced. This will serve as a basis for further research and development of monovalent CVA10 or polyvalent vaccines designed for effective disease prevention.
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