“…In 2009, Swedish researchers for the first time isolated PBoV from lymph nodes of the piglets with postweaning multisystemic wasting syndrome (PMWS) (Blomström et al, 2009). Since then, PBoV was identified in many countries including the USA, Northern Ireland, Cameroon, Uganda, Korea and some European countries (Cadar et al, 2011;McKillen et al, 2011;McNair et al, 2011;Shan et al, 2011b;Blomström et al, 2013;Ndze et al, 2013;Choi et al, 2014;Huang et al, 2014;Jiang et al, 2014;Gunn et al, 2015). In China, PBoV has also been identified in many regions including Hubei, Shanghai, Jiangsu, Shandong, Guizhou and Hong Kong (Cheng et al, 2010;Zhai et al, 2010;Fu et al, 2011;Zhang et al, 2011;Wang et al, 2013;Luo et al, 2015).…”