First molecular detection of porcine rotavirus B (RVB) in Poland – case study and genome analysis

Our study reports the first molecular detection of porcine RVB in faecal samples collected from pigs reared on a commercial swine farm in Poland. Since the material was obtained from clinically affected animals and RVB was proven dominant among viral reads obtained during the NGS investigation, the virus may be considered as a potential causative agent of diarrhoeal disease in suckling piglets. Moreover, our research provides the tenth porcine RVB genome in Europe. The identities and phylogenetic clustering of different segment sequences to those from North America, Asia or Europe may suggest a complex evolutionary history of the Polish strain.