Highly pathogenic avian influenza, Japan (OIE, Feb 24 2011, edited), poultry: Wakayama, Miyazaki, Mie, Aichi

[Giuseppe]

Highly pathogenic avian influenza, Japan (OIE, Feb 24 2011, edited)


[Source: OIE, full page, (LINK). Edited.]

Highly pathogenic avian influenza, Japan

Information received on 24/02/2011 from Dr Toshiro Kawashima, CVO, Animal Health Division, Ministry of Agriculture, Forestry and Fisheries, Tokyo , Japan

• Summary
  • Report type Follow-up report No. 9
  • Start date 27/11/2010
  • Date of first confirmation of the event 29/11/2010
  • Report date 24/02/2011
  • Date submitted to OIE 24/02/2011
  • Reason for notification Reoccurrence of a listed disease
  • Date of previous occurrence 01/04/2009
  • Manifestation of disease Clinical disease
  • Causal agent Highly pathogenic avian influenza virus
  • Serotype H5N1
  • Nature of diagnosis Clinical, Laboratory (basic), Laboratory (advanced), Necropsy
  • This event pertains to the whole country
  • Related reports
    • Immediate notification (02/12/2010)
    • Follow-up report No. 1 (09/12/2010)
    • Follow-up report No. 2 (16/12/2010)
    • Follow-up report No. 3 (21/12/2010)
    • Follow-up report No. 4 (27/12/2010)
    • Follow-up report No. 5 (23/01/2011)
    • Follow-up report No. 6 (02/02/2011)
    • Follow-up report No. 7 (09/02/2011)
    • Follow-up report No. 8 (17/02/2011)
    • Follow-up report No. 9 (24/02/2011)

• New outbreaks
  • Outbreak 1 - Kishigawa-cho, Kinokawa city, WAKAYAMA
    • Date of start of the outbreak 15/02/2011
    • Outbreak status Resolved (20/02/2011)
    • Epidemiological unit Farm
    • Affected animals: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
      • Birds - 120000 - 10 - 10 - 119990 - 0
  • Outbreak 2 - Kitaura-machi, Nobeoka city, MIYAZAKI
    • Date of start of the outbreak 15/02/2011
    • Outbreak status Resolved (17/02/2011)
    • Epidemiological unit Farm
    • Affected animals: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
      • Birds - 20000 - 35 - 35 - 19965 - 0
  • Outbreak 3 - Kiho-cho, Minamimuro-gun, MIE
    • Date of start of the outbreak 15/02/2011
    • Outbreak status Resolved (21/02/2011)
    • Epidemiological unit Farm
    • Affected animals: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
      • Birds - 67000 - 35 - 35 - 66965 - 0
  • Outbreak 4 - Hiyoshi, Shinshiro city, AICHI
    • Date of start of the outbreak 14/02/2011
    • Outbreak status Resolved (16/02/2011)
    • Epidemiological unit Farm
    • Affected animals: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
      • Birds - 17500 - 20 - 20 - 17480 - 0

• Summary of outbreaks
  • Total outbreaks: 4
  • Total animals affected: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
    • Birds - 224500 - 100 - 100 - 224400 - 0
  • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
    • Birds - 0.04% - 0.04% - 100.00% - 100.00%
    • * Removed from the susceptible population through death, destruction and/or slaughter

• Epidemiology
  • Source of the outbreak(s) or origin of infection
    • * Unknown or inconclusive

• Epidemiological comments
  • Hiyoshi, Shinshiro city, Aichi:
    • On 14 February 2011, poultry was tested positive for influenza A with rapid test at a farm in Hiyoshi.
    • Virus was identified as H5 with RT-PCR on 14 February and as H5N1 on 18 February.
    • Mandatory movement restriction has been enforced within 10 km around the affected farm since 14 February 2011.
    • All of the poultry at the farm was destroyed by 15 February.
  • Kishigawa-cho, Kinokawa city, Wakayama:
    • On 15 February 2011, poultry was tested positive for influenza A with rapid test at a farm in Kishigawa-cho.
    • Virus was identified as H5 with RT-PCR on 15 February and as H5N1 on 19 February.
    • Mandatory movement restriction has been enforced within 10 km around the affected farm since 15 February 2011.
    • All of the poultry at the farm was destroyed by 18 February.
  • Kiho-cho, Minamimuro-gun, Mie:
    • On 15 February 2011, poultry was tested positive for influenza A with rapid test at a farm in Kiho-cho.
    • Virus was identified as H5 with RT-PCR on 16 February and as H5N1 on 19 February.
    • Mandatory movement restriction has been enforced within 10 km around the affected farm since 15 February 2011.
    • All of the poultry at the farm was destroyed by 17 February.
  • Kitaura-machi, Nobeoka city, Miyazaki:
    • On 15 February 2011, poultry was tested positive for influenza A with rapid test at a farm in Kitaura-machi.
    • Virus was identified as H5 with RT-PCR on 17 February and as H5N1 on 22 February.
    • Mandatory movement restriction has been enforced within 10 km around the affected farm since 15 February 2011.
    • All of the poultry at the farm was destroyed by 17 February.
  • Mandatory movement restrictions were lifted on 15 February in Sadohara-cho (follow-up report No. 5), on 20 February in Tsuno-cho (follow-up report No. 6), on 21 February in Nobeoka city (follow-up report No. 6), on 22 February in Kawaminami-cho (follow-up report No. 6), on 23 February in Takanabe-cho (follow-up report No. 7) and on 24 February in Shintomi-cho (follow-up report No. 5).

• Control measures
  • Measures applied
    • Stamping out
    • Movement control inside the country
    • Screening
    • Disinfection of infected premises/establishment(s)
    • No vaccination
    • No treatment of affected animals
  • Measures to be applied
    • No other measures

• Diagnostic test results
  • Laboratory name and type Aichi Livestock Hygiene Centre (Local laboratory)
    • Tests and results: Species - Test - Test date - Result
      • Birds - reverse transcription - polymerase chain reaction (RT-PCR) - 14/02/2011 - Positive
  • Laboratory name and type Mie Livestock Hygiene Centre (Local laboratory)
    • Tests and results: Species - Test - Test date - Result
      • Birds - reverse transcription - polymerase chain reaction (RT-PCR) - 16/02/2011 - Positive
  • Laboratory name and type Miyazaki Livestock Hygiene Centre (Local laboratory)
    • Tests and results: Species - Test - Test date - Result
      • Birds - reverse transcription - polymerase chain reaction (RT-PCR) - 17/02/2011 - Positive
  • Laboratory name and type Wakayama Livestock Hygiene Centre (Local laboratory)
    • Tests and results: Species - Test - Test date - Result
      • Birds - reverse transcription - polymerase chain reaction (RT-PCR) - 15/02/2011 - Positive
  • Laboratory name and type National Institute of Animal Health (National laboratory)
    • Tests and results: Species - Test - Test date - Result
      • Birds - gene sequencing 16/02/2011 - Positive
      • Birds - gene sequencing - 18/02/2011 - Positive
      • Birds - gene sequencing - 21/02/2011 - Positive
      • Birds - haemagglutination inhibition test (HIT) - 16/02/2011 - Positive
      • Birds - haemagglutination inhibition test (HIT) - 17/02/2011 - Positive
      • Birds - haemagglutination inhibition test (HIT) - 18/02/2011 - Positive
      • Birds - neuraminidase inhibition assay - 18/02/2011 - Positive
      • Birds - neuraminidase inhibition assay - 19/02/2011 - Positive
      • Birds - neuraminidase inhibition assay - 22/02/2011 -Positive

• Future Reporting
  • The event is continuing. Weekly follow-up reports will be submitted.

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