Molecular Phylogeny of Coxsackievirus A16

We have read the article by [Zong et al.][1] with considerable interest ([1][2]). They described the molecular phylogeny of Coxsackievirus A16 (CVA16) in Shenzhen, China, from 2005 to 2009. In their paper, they claimed that “Subtype B2 could be further divided into clusters B2a, B2b, and B2c with