Low pathogenic avian influenza (poultry), South Africa (OIE, May 11 2012): 1 H5N2 Outbreak

[Giuseppe]

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


Low pathogenic avian influenza (poultry), South Africa


Information received on 11/05/2012 from Dr Bothle Michael Modisane, Chief Director , Department of Agriculture, Forestry and Fisheries, Animal Production and Health, PRETORIA, South Africa

• Summary
  • Report type Immediate notification (Final report)
  • Start date 13/01/2012
  • Date of first confirmation of the event 03/02/2012
  • Report date 11/05/2012
  • Date submitted to OIE 11/05/2012
  • Date event resolved 11/05/2012
  • Reason for notification Reoccurrence of a listed disease
  • Date of previous occurrence 09/2008
  • Manifestation of disease Sub-clinical infection
  • Causal agent Low pathogenic avian influenza virus
  • Serotype H5N2
  • Nature of diagnosis Laboratory (advanced)
  • This event pertains to the whole country
• New outbreaks
  • Outbreak 1 (LPAI_WCP2012_01) LPAI_WCP2012_01, Uniondale, WESTERN CAPE PROVINCE
    • Date of start of the outbreak 13/01/2012
    • Outbreak status Resolved (11/05/2012)
    • Epidemiological unit Farm
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds ? 2407 ? 622 ? 0 ? 0 ? 2407
      • Affected Population:
        • Commercial ostriches.
        • First suspected to be HPAI.
• Summary of outbreaks
  • Total outbreaks: 1
  • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
    • Birds - 25.84% - 0.00% - 0.00% - 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
  • LPAI infection detected during routine surveillance for HPAI.
  • Concurrent with HPAI H5N2 event.
  • Note by the OIE Animal Health Information Department:
    • H5 and H7 avian influenza in its low pathogenic form in poultry is a notifiable disease as per Chapter 10.4. on avian influenza of the Terrestrial Animal Health Code (2011).
• Control measures
  • Measures applied
    • Stamping out
    • Quarantine
    • Movement control inside the country
    • Screening
    • No vaccination
    • No treatment of affected animals
  • Measures to be applied
    • No other measures
• Diagnostic test results
  • Laboratory name and type Agricultural Research Council - Onderstepoort Veterinary Institute (ARC ? OVI) (National laboratory)
    • Tests and results: Species ? Test - Test date ? Result
      • Birds - polymerase chain reaction (PCR) - 03/02/2012 ? Positive
• Future Reporting
  • The event is resolved. No more reports will be submitted.

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