Highly pathogenic avian influenza, China (People's Rep. of) (OIE, July 2 2012): 1 New H5N1 Poultry Outbreak, Xinjiang

[Giuseppe]

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


Highly pathogenic avian influenza, China (People's Rep. of)


Information received on 02/07/2012 from Dr Zhang Zhongqui, Director General , China Animal Disease Control Centre, Veterinary Bureau, Ministry of Agriculture, Beijing, China (People's Rep. of)

• Summary
  • Report type Follow-up report No. 6
  • Start date 02/12/2011
  • Date of first confirmation of the event 12/12/2011
  • Report date 02/07/2012
  • Date submitted to OIE 02/07/2012
  • Reason for notification Reoccurrence of a listed disease
  • Date of previous occurrence 25/05/2010
  • Manifestation of disease Clinical disease
  • Causal agent Highly pathogenic avian influenza virus
  • Serotype H5N1
  • Nature of diagnosis Clinical, Laboratory (advanced)
  • This event pertains to a defined zone within the country
  • Related reports
    • Immediate notification (12/12/2011)
    • Follow-up report No. 1 (31/03/2012)
    • Follow-up report No. 2 (18/04/2012)
    • Follow-up report No. 3 (24/04/2012)
    • Follow-up report No. 4 (17/05/2012)
    • Follow-up report No. 5 (06/06/2012)
    • Follow-up report No. 6 (02/07/2012)
• New outbreaks
  • Outbreak 1 - Xinjiang Production and Construction Corps, XINJIANG
    • Date of start of the outbreak 02/07/2012
    • Outbreak status Continuing (or date resolved not provided)
    • Epidemiological unit Farm
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds ? 156439 ? 5500 ? 1600 ? 154839 ? 0
• Summary of outbreaks
  • Total outbreaks: 1
  • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
    • Birds - 3.52% - 1.02% - 29.09% - 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
• Control measures
  • Measures applied
    • Stamping out
    • Quarantine
    • Movement control inside the country
    • Screening
    • Zoning
    • Vaccination in response to the outbreak (s): Administrative division ? Species - Total Vaccinated ? Details
      • XINJIANG ? Birds ? 116327 - ?
    • Disinfection of infected premises/establishment(s)
    • Dipping / Spraying
    • No treatment of affected animals
  • Measures to be applied
    • No other measures
• Diagnostic test results
  • Laboratory name and type Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences (national reference laboratory for avian influenza) (OIE?s Reference Laboratory)
    • Tests and results: Species ? Test - Test date ? Result
      • Birds - haemagglutination inhibition test (HIT) - 02/07/2012 ? Positive
      • Birds - intravenous pathogenicity index (IVPI) test - 02/07/2012 ? Positive
      • Birds - reverse transcription - polymerase chain reaction (RT-PCR) - 02/07/2012 ? Positive
• Future Reporting
  • The event is continuing. Weekly follow-up reports will be submitted.

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