Dynamic alterations of the mice gut virome after Coxsackievirus B3 infection.

The gut microbiome plays an essential role in the human health and dysbiosis has been implicated in numerous diseases. Coxsackievirus B3 infects millions of humans yearly and yet limited research has explored dynamic alterations of the gut virome after infection. Here, we established the mouse model of Coxsackievirus B3 infection and collected fecal samples at several time points to investigate alterations of the gut virome using viral metagenomic analysis. We found that the mice virome was dominated by Caudovirales and Microviridae, and phylogenetic analyses showed that both Caudovirales and Microviridae had high diversity. The gut virome had significant variations with the increase of Caudovirales and the decrease of Microviridae after infection. We proposed that Caudovirales and Microviridae may be biomarkers for the Coxsackievirus infection process. This study provides a reference for the dynamic changes of the gut virome after human Enterovirus infection, which may help guide the rational drug use in clinical treatment and provide new ideas for preventing Enterovirus infection.