GENETIC CHARACTERIZATION OF E2 GENE OF CLASSICAL SWINE FEVER VIRUS CIRCULATING IN NAM DINH AND HAI DUONG PROVINCES

Ngày nhận bài: 01-03-2017

Ngày duyệt đăng: 24-04-2017

Ngày xuất bản: 06-08-2025

DOI: https://doi.org/10.31817/tckhnnvn.2017.15.3.

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Số: Tập 15 Số 3 (2017)

Chuyên mục:

CHĂN NUÔI – THÚ Y – THỦY SẢN

Cách trích dẫn:

Hung, N., Lan, N., Nga, B., Truong, T., & Phan, L. (2025). GENETIC CHARACTERIZATION OF E2 GENE OF CLASSICAL SWINE FEVER VIRUS CIRCULATING IN NAM DINH AND HAI DUONG PROVINCES. Tạp Chí Khoa học Nông nghiệp Việt Nam, 15(3), 230–237. https://doi.org/10.31817/tckhnnvn.2017.15.3.

GENETIC CHARACTERIZATION OF E2 GENE OF CLASSICAL SWINE FEVER VIRUS CIRCULATING IN NAM DINH AND HAI DUONG PROVINCES

Nguyen Phuc Hung 1, 2 , Nguyen Thi Lan 1, 2 , Bui Thi To Nga 1, 2 , Thang Truong 1, 2 , Le Van Phan 1, 2

  • 1 Faculty of Veterinary Medicine, Vietnam National University of Agriculture (VNUA), Vietnam
  • 2 National Centre for Foreign Animal Disease, Winnipeg, Manitoba, Canada.

    • Từ khóa

    CSFV, E2 gene, Phylogenetic tree

    Tóm tắt


    Classical swine fever (CSF), a highly infectious viral disease of swine, has caused great economic losses to the swine industry worldwide. Previous reports showed that CSF virus (CSFV) circulating in the Mekong delta area of South Vietnam between 2002 and 2003 belonged to group 2. In this study, to identify the predominant CSFV strains currently circulating in North Vietnam, the full-length E2 gene of five CSFV isolates collected from Hai Duong and Nam Dinh provinces of Vietnam in 2014 were sequenced and analyzed. The results of nucleotide (nt) and amino acid (aa) comparison showed that the 5 field CSFV isolates in this study shared 85.5 - 99.7% nt and 92.7 - 99.7% aa identity. Phylogenetic analysis of the complete E2 gene sequences revealed that the CSFV isolates collected from two farms (one in Ninh Giang - Hai Duong and one in My Xa - Nam Dinh) belonged to subgroup 2.1, whereas CSFV isolates collected in the Xuan Truong - Nam Dinh farm clustered within subgroup 2.2.

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