Highly pathogenic avian influenza H5N1, Nepal (OIE, November 2 2012): 1 New Poultry Outbreak

[Giuseppe]

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


Highly pathogenic avian influenza, Nepal


Information received on 02/11/2012 from Dr Nar Bahadur Rajwar, Director General, Department of Livestock Services, Department of Livestock Services, Lalitpur, Nepal

• Summary
  • Report type Immediate notification
  • Date of start of the event 06/10/2012
  • Date of pre-confirmation of the event 12/10/2012
  • Report date 02/11/2012
  • Date submitted to OIE 02/11/2012
  • Reason for notification Reoccurrence of a listed disease
  • Date of previous occurrence 27/08/2012
  • Manifestation of disease Clinical disease
  • Causal agent Highly Pathogenic Avian Influenza
  • Serotype H5
  • Nature of diagnosis Suspicion, Clinical, Laboratory (basic), Laboratory (advanced), Necropsy
  • This event pertains to the whole country
• New outbreaks
  • Summary of outbreaks
    • Total outbreaks: 1
    • Outbreak Location: BAGMATI (Madhyapur Thimi Municipality -3, Bode, Bhaktapur)
      • Total animals affected: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
        • Birds - 2000 - 1220 - 1220 - 780 - 0
    • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
      • Birds - 61.00% - 61.00% - 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
  • Reduced egg production with irregular shape and sized eggs was noticed in a commercial layer farm.
  • High mortality was recorded in the affected farm.
  • All remaining birds and poultry product, poultry production materials were destroyed and the infected premises was cleaned and disinfected.
  • Post-operative surveillance activities are continuing throughout the country.
  • No further outbreaks have been recorded.
• 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 - CVL (National laboratory)
    • Tests and results: Species - Test - Test date - Result
      • Birds - polymerase chain reaction (PCR) - 12/10/2012 - Positive
      • Birds - rapid tests - 10/10/2012 - Positive
• Future Reporting
  • The event is continuing. Weekly follow-up reports will be submitted.

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