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- Title
Phylogenetic analysis of the E2 gene of classical swine fever virus from the Guangxi Province of southern China.
- Authors
Ting Rong Luo; Su-huan Liao; Xian-shi Wu; Li Feng; Zhao-Xia Yuan; Hui Li; Jing-Jing Liang; Xian-Ming Meng; Hong-Yun Zhang
- Abstract
In this study, suspected classical swine fever (CSF) samples from the Guangxi Province of China were obtained from pigs with acute CSF, aborted fetuses, newborn pigs that died at 1-2 days of age, tonsils of healthy pigs, and leukocytes of immunized sows during 2001-2009. About 92 of 775 samples were found to be positive by RT-PCR, and 41 isolates were obtained. Phylogenetic analysis was performed on the 31 isolates by sequencing the E2 gene, and the isolates were found to cluster into two groups: (1) isolates from aborted fetuses (except GXGZ02), deceased newborn baby pigs, tonsils of healthy pigs, and leukocytes of immunized sows belonged to group 1.1, along with vaccine strain, HCLV, and standard virulent strain, Shimen, of China, and (2) 20 isolates from pigs with acute CSF belonged to group 2.1, 13 of which were clustered into subgroup 2.1b with isolates from other provinces of China, and 7 of which were clustered into subgroup 2.1a with isolates from Italy and Germany.
- Subjects
GUANGXI Zhuangzu Zizhiqu (China); CHINA; CLASSICAL swine fever; SWINE diseases; PHYLOGENY; NUCLEOTIDE sequence; VIRAL genomes
- Publication
Virus Genes, 2011, Vol 42, Issue 3, p347
- ISSN
0920-8569
- Publication type
Article
- DOI
10.1007/s11262-011-0578-8