| phylogenetic analysis using e2 gene of classical swine fever virus reveals a new subgenotype in china. | outbreaks of classical swine fever (csf) have caused serious economic consequences in china. phylogenetic analysis based on full-length e2 gene sequences showed that five classical swine fever virus (csfv) isolates collected from hunan province in 2011 and 2012, together with seven other isolates from neighboring provinces, guangdong (5) and guangxi (2), could be classified as a new subgenotype 2.1c, which may have been endemic in the south of china for at least fourteen years. subgenotype 2.1c ... | 2013 | 23608662 |