| identification of atypical porcine pestivirus infection in swine herds in china. | atypical porcine pestivirus (appv) have been detected in swine herds from the usa, germany, the netherlands, spain and most recently in austria, suggesting a wide geographic distribution of this novel virus. here, for the first time, we reported appv infection in swine herds in china. newborn piglets from two separate swine herds in guangdong province were found showing typical congenital tremors in july and august 2016. rt-pcr, sequencing and phylogenetic analysis showed appv infection occurred ... | 2017 | 28497656 |