Highly pathogenic avian influenza H5N1, Nepal (OIE, January 21 2013): 4 New Poultry Outbreaks

[Giuseppe]

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


Highly pathogenic avian influenza, Nepal


Information received on 21/01/2013 from Dr Nar Bahadur Rajwar, Director General, Department of Livestock Services, Department of Livestock Services, Lalitpur, Nepal

• Summary
  • Report type Follow-up report No. 5
  • Date of start of the event 27/08/2012
  • Date of pre-confirmation of the event 03/09/2012
  • Report date 21/01/2013
  • Date submitted to OIE 21/01/2013
  • Reason for notification Reoccurrence of a listed disease
  • Date of previous occurrence 30/03/2012
  • 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 (14/10/2012)
    • Follow-up report No. 1 (02/11/2012)
    • Follow-up report No. 2 (24/12/2012)
    • Follow-up report No. 3 (06/01/2013)
    • Follow-up report No. 4 (18/01/2013)
    • Follow-up report No. 5 (21/01/2013)
• New outbreaks (4)
  • Outbreak 1 - Kosheghari, Pokhara Sub Metro Polis 17, Kaski, GANDAKI
    • Date of start of the outbreak 02/01/2013
    • Outbreak status Resolved (16/01/2013)
    • Epidemiological unit Farm
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds - 1100 ? 272 ? 272 ? 828 ? 0
      • Affected population: A commercial broiler farm with birds raised in an intensive farming system
  • Outbreak 2 - Simpani, Pokhara Sub Metro Polis 1, Kaski, GANDAKI
    • Date of start of the outbreak 06/01/2013
    • Outbreak status Resolved (16/01/2013)
    • Epidemiological unit Farm
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds - 255 ? 150 ? 150 ? 105 ? 0
      • Affected population: A commercial broiler farm with birds raised in an intensive farming system
  • Outbreak 3 - Batulechaur, Pokhara Sub Metro Polis 16, Kaski, GANDAKI
    • Date of start of the outbreak 06/01/2013
    • Outbreak status Resolved (16/01/2013)
    • Epidemiological unit Farm
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds - 200 ? 90 ? 90 ? 110 ? 0
      • Affected population: A commercial broiler farm with birds raised in an intensive farming system
  • Outbreak 4 - Sedibagar, Sarangkot - 7, Kaski, GANDAKI
    • Date of start of the outbreak 06/01/2013
    • Outbreak status Resolved (16/01/2013)
    • Epidemiological unit Farm
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds - 1605 ? 600 ? 600 ? 1005 ? 0
      • Affected population: A commercial broiler farm with birds raised in an intensive farming system
• Summary of outbreaks
  • Total outbreaks: 4
    • Total animals affected: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds ? 3160 ? 1112 ? 1112 ? 2048 ? 0
  • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
    • Birds - 35.19% - 35.19% - 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
  • Birds showed respiratory distress, nervous signs and all affected birds died.
  • Cleaning and disinfection activities in the infected premises are completed.
  • Intensive surveillance activities are ongoing throughout the country.
• Control measures
  • Measures applied
    • Control of wildlife reservoirs
    • 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 ? Species ? Test - Test date ? Result
    • Central Veterinary Laboratory (National laboratory) ? Birds - polymerase chain reaction (PCR) - 13/01/2013 ? Positive
    • Central Veterinary Laboratory (National laboratory) ? Birds - rapid tests - 13/01/2013 ? Positive
• Future Reporting
  • The event is continuing. Weekly follow-up reports will be submitted.

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