O R I G I N A L A R T I C L E The detection and phylogenetic analysis of porcine deltacoronavirus from Guangdong Province in Southern China K. Mai | J. Feng | G. Chen | D. Li | L. Zhou | Y. Bai | Q. Wu | J. Ma College of Animal Science, South China Agricultural University, Guangzhou, China Correspondence J. Ma, College of Animal Science, South China Agricultural University, Guangzhou, China. Email: