Previous studies have reported that HBoV infection was more prevalent among individuals who had other respiratory viruses [10, 22] . In a study performed in Hong Kong [19] , a higher detection rate of HBoV was observed in NPAs positive for common respiratory viruses than in those that were negative for the same. However, in our study, similar detection rate of HBoV was observed in the samples positive and negative for other respiratory viruses in the R-mix culture (Data are not shown).