Highly pathogenic avian influenza, Bangladesh (OIE, May 12 2011): Three new H5N1 poultry outbreaks

[Giuseppe]

[Source: OIE, full text: (LINK). Extract, edited.]

Highly pathogenic avian influenza, Bangladesh


Information received on 12/05/2011 from Dr Aminur Rahman, Director (Animal Health & Administration), Department of Livestock Services, Ministry of Fisheries and Livestock, DHAKA, Bangladesh

• Summary
  • Report type Follow-up report No. 33
  • Start date 05/02/2007
  • Date of first confirmation of the event 22/03/2007
  • Report date 12/05/2011
  • Date submitted to OIE 12/05/2011
  • Reason for notification First occurrence of a listed disease
  • Manifestation of disease Clinical disease
  • Causal agent Highly pathogenic avian influenza virus
  • Serotype H5N1
  • Nature of diagnosis Suspicion, Clinical, Laboratory (basic), Laboratory (advanced), Necropsy
  • This event pertains to the whole country
  • Related reports
    • Immediate notification (30/03/2007)
    • Follow-up report No. 1 (30/04/2007)
    • Follow-up report No. 2 (24/05/2007)
    • Follow-up report No. 3 (08/07/2007)
    • Follow-up report No. 4 (17/12/2007)
    • Follow-up report No. 5 (16/03/2008)
    • Follow-up report No. 6 (24/04/2008)
    • Follow-up report No. 7 (11/06/2008)
    • Follow-up report No. 8 (20/11/2008)
    • Follow-up report No. 9 (17/12/2008)
    • Follow-up report No. 10 (06/01/2009)
    • Follow-up report No. 11 (22/01/2009)
    • Follow-up report No. 12 (29/01/2009)
    • Follow-up report No. 13 (03/02/2009)
    • Follow-up report No. 14 (10/02/2009)
    • Follow-up report No. 15 (26/02/2009)
    • Follow-up report No. 16 (12/03/2009)
    • Follow-up report No. 17 (13/04/2009)
    • Follow-up report No. 18 (17/06/2009)
    • Follow-up report No. 19 (14/07/2009)
    • Follow-up report No. 20 (20/09/2009)
    • Follow-up report No. 21 (20/01/2010)
    • Follow-up report No. 22 (31/01/2010)
    • Follow-up report No. 23 (02/03/2010)
    • Follow-up report No. 24 (25/04/2010)
    • Follow-up report No. 25 (17/06/2010)
    • Follow-up report No. 26 (10/01/2011)
    • Follow-up report No. 27 (03/02/2011)
    • Follow-up report No. 28 (13/02/2011)
    • Follow-up report No. 29 (24/02/2011)
    • Follow-up report No. 30 (06/03/2011)
    • Follow-up report No. 31 (24/03/2011)
    • Follow-up report No. 32 (21/04/2011)
    • Follow-up report No. 33 (12/05/2011)
• New outbreaks
  • Outbreak 1 - Rabbi poultry farm, Bastumbag, Barodi, Sonargaon, Narayangonj, DHAKA
    • Date of start of the outbreak 08/05/2011
    • Outbreak status Resolved (09/05/2011)
    • Epidemiological unit Farm
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds ? 4770 ? 119 ? 119 ? 4651 ? 0
      • Affected Population a commercial poultry farm
  • Outbreak 2 - Abdul Jalil poultry farm, Chandiber, Bhairab, Kishoregonj, DHAKA
    • Date of start of the outbreak 23/04/2011
    • Outbreak status Resolved (23/04/2011)
    • Epidemiological unit Farm
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds ? 3000 ? 3000 ? 3000 ? 0 ? 0
      • Affected Population a commercial poultry farm
  • Outbreak 3 - Tisha poultry farm, Mandarpara, Barodi, Sonargaon, Narayangonj, DHAKA
    • Date of start of the outbreak 08/05/2011
    • Outbreak status Resolved (09/05/2011)
    • Epidemiological unit Farm
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds ? 3500 ? 65 ? 65 ? 3435 ? 0
      • Affected Population a commercial poultry farm
• Summary of outbreaks
  • Total outbreaks: 3
  • Total animals affected: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
    • Birds ? 11270 ? 3184 ? 3184 ? 8086 ? 0
  • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
    • Birds - 28.25% - 28.25% - 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
• Control measures
  • Measures applied
    • Stamping out
    • Movement control inside the country
    • Disinfection of infected premises/establishment(s)
    • Vaccination prohibited
    • No treatment of affected animals
  • Measures to be applied
    • No other measures
• Diagnostic test results
  • Laboratory name and type Bangladesh Livestock Research Institute, Savar, Dhaka (National laboratory)
    • Tests and results: Species ? Test - Test date ? Result
      • Birds - reverse transcription - polymerase chain reaction (RT-PCR) - 24/04/2011 ? Positive
      • Birds - reverse transcription - polymerase chain reaction (RT-PCR) - 10/05/2011 ? Positive
  • Laboratory name and type Central Disease Investigation Laboratory, Dhaka (National laboratory)
    • Tests and results: Species ? Test - Test date ? Result
      • Birds - rapid tests - 23/04/2011 ? Positive
      • Birds - rapid tests - 09/05/2011 ? Positive
• Future Reporting
  • The event is continuing. Weekly follow-up reports will be submitted.

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