Highly pathogenic avian influenza, Nepal (OIE, February 15 2012): 4 New H5N1 Poultry Outbreaks

[Giuseppe]

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


Highly pathogenic avian influenza, Nepal


Information received on 15/02/2012 from Dr Nar Bahadur Rajwar, Director General, Department of Livestock Services, Department of Livestock Services, Lalitpur, Nepal

• Summary
  • Report type Follow-up report No. 2
  • Start date 10/11/2011
  • Date of first confirmation of the event 14/11/2011
  • Report date 15/02/2012
  • Date submitted to OIE 15/02/2012
  • Reason for notification Reoccurrence of a listed disease
  • Date of previous occurrence 30/10/2010
  • 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 (02/12/2011)
    • Follow-up report No. 1 (12/02/2012)
    • Follow-up report No. 2 (15/02/2012)
• New outbreaks
  • Outbreak 1 - Pathamari VDC 1, Pathamari, Jhapa, MECHI
    • Date of start of the outbreak 06/02/2012
    • Outbreak status Resolved (13/02/2012)
    • Epidemiological unit Village
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds ? 650 ? 361 ? 361 ? 289 ? 0
      • Affected Population:
        • Backyard bird population raised in a clustered village
  • Outbreak 2 - Charpane VDC 3, Charpane, Jhapa, MECHI
    • Date of start of the outbreak 06/02/2012
    • Outbreak status Resolved (13/02/2012)
    • Epidemiological unit Farm
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds ? 1800 ? 964 ? 964 ? 836 ? 0
      • Affected Population:
        • A commercial 56-week-old layer farm
  • Outbreak 3 - Arjundhara VDC 7, Arjundhara, Jhapa, MECHI
    • Date of start of the outbreak 06/02/2012
    • Outbreak status Resolved (13/02/2012)
    • Epidemiological unit Village
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds ? 264 ? 122 ? 122 ? 142 ? 0
      • Affected Population:
        • Backyard bird population in a small clustered village
  • Outbreak 4 - Itahari Municipality-6, Bajraha, Sunsari, KOSHI
    • Date of start of the outbreak 31/01/2012
    • Outbreak status Resolved (14/02/2012)
    • Epidemiological unit Farm
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds ? 9500 ? 4647 ? 4647 ? 4853 ? 0
      • Affected Population:
        • A commercial layer and dual purpose breed farm
• Summary of outbreaks
  • Total outbreaks: 4
  • Total animals affected: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
    • Birds ? 12214 ? 6094 ? 6094 ? 6120 ? 0
  • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
    • Birds - 49.89% - 49.89% - 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
  • Stamping out followed by cleaning, disinfection, disposal and sealing of the infected premises have already been completed.
  • Post-operative surveillance activities are being intensively carried out throughout the country.
• Control measures
  • Measures applied
    • Stamping out
    • Quarantine
    • Movement control inside the country
    • Screening
    • Disinfection of infected premises/establishment(s)
    • Dipping / Spraying
    • Vaccination prohibited
    • No treatment of affected animals
  • Measures to be applied
    • No other measures
• Diagnostic test results
  • Laboratory name and type Central Veterinary Laboratory (National laboratory)
    • Tests and results: Species ? Test - Test date ? Result
      • Birds - polymerase chain reaction (PCR) - 03/02/2012 ? Positive
      • Birds - polymerase chain reaction (PCR) - 09/02/2012 ? Positive
• Future Reporting
  • The event is continuing. Weekly follow-up reports will be submitted.

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