Volume 51, Issue 9 pp. 833-840
Article
Free Access

Molecular Epidemiology of Rabies in Vietnam

Junpei Yamagata

Junpei Yamagata

Division of Microbiology, Department of Infectious Diseases, Faculty of Medicine, Yufu, Oita, 879-5593 Japan

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Kamruddin Ahmed

Kamruddin Ahmed

Division of Infectious Diseases, Department of Social and Environmental Medicine, Institute of Scientific Research, Yufu, Oita, 879-5593 Japan

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Pakamatz Khawplod

Pakamatz Khawplod

Division of Microbiology, Department of Infectious Diseases, Faculty of Medicine, Yufu, Oita, 879-5593 Japan

Queen Saovabha Memorial Institute, Thai Red Cross Society, Rama IV Rd., Bangkok, 10330 Thailand

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Kazuaki Mannen

Kazuaki Mannen

Laboratory Animal Research Center, Faculty of Medicine, Oita University, Yufu, Oita, 879-5593 Japan

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Dinh Kim Xuyen

Dinh Kim Xuyen

National Institute of Hygiene and Epidemiology, Yersin Street Hanoi, Vietnam

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Huynh Huu Loi

Huynh Huu Loi

The Sub Department of Animal Health of Ho Chi Minh City 11, Vietnam

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Nguyen Van Dung

Nguyen Van Dung

The Sub Department of Animal Health of Ho Chi Minh City 11, Vietnam

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Akira Nishizono

Corresponding Author

Akira Nishizono

Division of Microbiology, Department of Infectious Diseases, Faculty of Medicine, Yufu, Oita, 879-5593 Japan

Address correspondence to Dr. Akira Nishizono, Division of Microbiology, Department of Infectious Diseases, Oita University, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita 879-5593, Japan. Fax: +81-97-586-5719. E-mail: [email protected]Search for more papers by this author
First published: 14 November 2013
Citations: 24

Abstract

The present study was done to determine the molecular epidemiology of rabies virus (RV) in Vietnam. The nucleoprotein (N) and glycoprotein (G) genes of RVs were amplified from the brains of ten rabid dogs of Ho Chi Minh City, Vietnam. The nucleotide sequences of these genes were compared with those of other Asian strains to find the possible relationship among them. Phylogenetic analysis revealed that the Asian N gene segregated into three main branches, namely South-East Asia 1 (SEA 1), South-East Asia 2 (SEA 2) and Indian subcontinent (ISC) genotypes. The SEA 1 genotype comprised RVs from Malaysia, Vietnam and Thailand. The SEA 2 genotype contained strains from the Philippines, and the ISC genotype comprised strains from Sri Lanka and India. Phylogenetically G genes of RVs from Vietnam and Thailand were clustered together. Our study suggests that Vietnamese and Thai RVs are closely related and might have originated from a common ancestor.

Abbreviations

  • cDNA
  • complementary deoxyribonucleic acid
  • G
  • glycoprotein
  • HCM
  • Ho Chi Minh City
  • IPTG
  • isopropyl-β-D-thiogalactopyranoside
  • MMLV
  • Moloney Murine Leukemia Virus
  • N
  • nucleoprotein
  • RT-PCR
  • reverse transcription and polymerase chain reaction
  • RV
  • rabies virus
  • SEA 1
  • South-East Asia 1
  • SEA 2
  • South-East Asia 2
  • ISC
  • Indian subcontinent.
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