Possible circulation of H5N1 avian influenza viruses in healthy ducks on farms in northern Vietnam

Hiroki Takakuwa, Tetsu Yamashiro, Mai Q. Le, Lien S. Phuong, Hiroichi Ozaki, Ryota Tsunekuni, Tatsufumi Usui, Hiroshi Ito, Tsuyoshi Yamaguchi, Toshihiro Ito, Toshiyuki Murase, Etsuro Ono, Koichi Otsuki

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

To estimate the prevalence of influenza A subtype H5N1 viruses among domestic ducks in the period betweenOctober and November 2006 when H5N1 outbreaks had been absent, 1106 healthy ducks raised in northern Vietnam were collected. Inoculation of all throat and cloacae samples into embryonated eggs resulted in the isolation of subtype H3N8 in 13 ducks, but not H5N1 viruses. Serological analyses demonstrated that five ducks (0.45%) solely developed H5N1 subtype-specific hemagglutinin-inhibiting and neuraminidase-inhibiting antibodies together with anti-non-structural protein 1 antibodies. The results suggested that the ducks were naturally infected with H5N1 viruses when obvious H5N1 outbreaks were absent.

Original languageEnglish
Pages (from-to)58-62
Number of pages5
JournalMICROBIOLOGY and IMMUNOLOGY
Volume54
Issue number1
DOIs
Publication statusPublished - Jan 1 2010

Fingerprint

Influenza in Birds
Ducks
Vietnam
Orthomyxoviridae
H5N1 Subtype Influenza A Virus
Disease Outbreaks
Cloaca
Antibodies
Hemagglutinins
Neuraminidase
Pharynx
Eggs
Farms
Proteins

All Science Journal Classification (ASJC) codes

  • Microbiology
  • Immunology
  • Virology

Cite this

Takakuwa, H., Yamashiro, T., Le, M. Q., Phuong, L. S., Ozaki, H., Tsunekuni, R., ... Otsuki, K. (2010). Possible circulation of H5N1 avian influenza viruses in healthy ducks on farms in northern Vietnam. MICROBIOLOGY and IMMUNOLOGY, 54(1), 58-62. https://doi.org/10.1111/j.1348-0421.2009.00170.x

Possible circulation of H5N1 avian influenza viruses in healthy ducks on farms in northern Vietnam. / Takakuwa, Hiroki; Yamashiro, Tetsu; Le, Mai Q.; Phuong, Lien S.; Ozaki, Hiroichi; Tsunekuni, Ryota; Usui, Tatsufumi; Ito, Hiroshi; Yamaguchi, Tsuyoshi; Ito, Toshihiro; Murase, Toshiyuki; Ono, Etsuro; Otsuki, Koichi.

In: MICROBIOLOGY and IMMUNOLOGY, Vol. 54, No. 1, 01.01.2010, p. 58-62.

Research output: Contribution to journalArticle

Takakuwa, H, Yamashiro, T, Le, MQ, Phuong, LS, Ozaki, H, Tsunekuni, R, Usui, T, Ito, H, Yamaguchi, T, Ito, T, Murase, T, Ono, E & Otsuki, K 2010, 'Possible circulation of H5N1 avian influenza viruses in healthy ducks on farms in northern Vietnam', MICROBIOLOGY and IMMUNOLOGY, vol. 54, no. 1, pp. 58-62. https://doi.org/10.1111/j.1348-0421.2009.00170.x
Takakuwa, Hiroki ; Yamashiro, Tetsu ; Le, Mai Q. ; Phuong, Lien S. ; Ozaki, Hiroichi ; Tsunekuni, Ryota ; Usui, Tatsufumi ; Ito, Hiroshi ; Yamaguchi, Tsuyoshi ; Ito, Toshihiro ; Murase, Toshiyuki ; Ono, Etsuro ; Otsuki, Koichi. / Possible circulation of H5N1 avian influenza viruses in healthy ducks on farms in northern Vietnam. In: MICROBIOLOGY and IMMUNOLOGY. 2010 ; Vol. 54, No. 1. pp. 58-62.
@article{f30353877fb54a1891444f89d16bbfd7,
title = "Possible circulation of H5N1 avian influenza viruses in healthy ducks on farms in northern Vietnam",
abstract = "To estimate the prevalence of influenza A subtype H5N1 viruses among domestic ducks in the period betweenOctober and November 2006 when H5N1 outbreaks had been absent, 1106 healthy ducks raised in northern Vietnam were collected. Inoculation of all throat and cloacae samples into embryonated eggs resulted in the isolation of subtype H3N8 in 13 ducks, but not H5N1 viruses. Serological analyses demonstrated that five ducks (0.45{\%}) solely developed H5N1 subtype-specific hemagglutinin-inhibiting and neuraminidase-inhibiting antibodies together with anti-non-structural protein 1 antibodies. The results suggested that the ducks were naturally infected with H5N1 viruses when obvious H5N1 outbreaks were absent.",
author = "Hiroki Takakuwa and Tetsu Yamashiro and Le, {Mai Q.} and Phuong, {Lien S.} and Hiroichi Ozaki and Ryota Tsunekuni and Tatsufumi Usui and Hiroshi Ito and Tsuyoshi Yamaguchi and Toshihiro Ito and Toshiyuki Murase and Etsuro Ono and Koichi Otsuki",
year = "2010",
month = "1",
day = "1",
doi = "10.1111/j.1348-0421.2009.00170.x",
language = "English",
volume = "54",
pages = "58--62",
journal = "Microbiology and Immunology",
issn = "0385-5600",
publisher = "Center for Academic Publications Japan",
number = "1",

}

TY - JOUR

T1 - Possible circulation of H5N1 avian influenza viruses in healthy ducks on farms in northern Vietnam

AU - Takakuwa, Hiroki

AU - Yamashiro, Tetsu

AU - Le, Mai Q.

AU - Phuong, Lien S.

AU - Ozaki, Hiroichi

AU - Tsunekuni, Ryota

AU - Usui, Tatsufumi

AU - Ito, Hiroshi

AU - Yamaguchi, Tsuyoshi

AU - Ito, Toshihiro

AU - Murase, Toshiyuki

AU - Ono, Etsuro

AU - Otsuki, Koichi

PY - 2010/1/1

Y1 - 2010/1/1

N2 - To estimate the prevalence of influenza A subtype H5N1 viruses among domestic ducks in the period betweenOctober and November 2006 when H5N1 outbreaks had been absent, 1106 healthy ducks raised in northern Vietnam were collected. Inoculation of all throat and cloacae samples into embryonated eggs resulted in the isolation of subtype H3N8 in 13 ducks, but not H5N1 viruses. Serological analyses demonstrated that five ducks (0.45%) solely developed H5N1 subtype-specific hemagglutinin-inhibiting and neuraminidase-inhibiting antibodies together with anti-non-structural protein 1 antibodies. The results suggested that the ducks were naturally infected with H5N1 viruses when obvious H5N1 outbreaks were absent.

AB - To estimate the prevalence of influenza A subtype H5N1 viruses among domestic ducks in the period betweenOctober and November 2006 when H5N1 outbreaks had been absent, 1106 healthy ducks raised in northern Vietnam were collected. Inoculation of all throat and cloacae samples into embryonated eggs resulted in the isolation of subtype H3N8 in 13 ducks, but not H5N1 viruses. Serological analyses demonstrated that five ducks (0.45%) solely developed H5N1 subtype-specific hemagglutinin-inhibiting and neuraminidase-inhibiting antibodies together with anti-non-structural protein 1 antibodies. The results suggested that the ducks were naturally infected with H5N1 viruses when obvious H5N1 outbreaks were absent.

UR - http://www.scopus.com/inward/record.url?scp=75749123515&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=75749123515&partnerID=8YFLogxK

U2 - 10.1111/j.1348-0421.2009.00170.x

DO - 10.1111/j.1348-0421.2009.00170.x

M3 - Article

C2 - 20055944

AN - SCOPUS:75749123515

VL - 54

SP - 58

EP - 62

JO - Microbiology and Immunology

JF - Microbiology and Immunology

SN - 0385-5600

IS - 1

ER -