Abstract

Aim: To explore the underlying genetic reasons of Enterovirus D68 (EV-D68) for its differential epidemiological patterns among continents. Materials & methods: Four hundred and sixty complete VP1 sequences of EV-D68 from GenBank were analyzed with phylodynamics approaches. Results: Sharp bottlenecks of viral population dynamics in 2014 were observed to be strongly correlated with pandemic prevalence of EV-D68; multi-clade distribution of EV-D68 in the USA and Germany in the time-scaled maximum clade credibility tree of total EV-D68 was also a discriminative feature between pandemic and sporadic prevalences. Conclusion: These findings provide insights into the phylogenetic features of EV-D68 correlated with its differential epidemiological patterns among continents.

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