Low pathogenic avian influenza H5N2 (poultry), South Africa (OIE, October 4 2012): 1 New Outbreak (June 2012)

[Giuseppe]

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


Low pathogenic avian influenza (poultry), South Africa


Information received on 04/10/2012 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
  • Date of start of the event 01/06/2012
  • Date of pre-confirmation of the event 29/06/2012
  • Report date 04/10/2012
  • Date submitted to OIE 04/10/2012
  • Reason for notification Reoccurrence of a listed disease
  • Date of previous occurrence 11/05/2012
  • Manifestation of disease Clinical disease
  • Causal agent Low pathogenic avian influenza virus
  • Serotype H5N2
  • Nature of diagnosis Laboratory (advanced)
  • This event pertains to the whole country
• New outbreaks (2)
  • Outbreak 1 - (LPAI_2012_H5N2_001) LPAI_2012_H5N2_001, Stellenbosch, WESTERN CAPE PROVINCE
    • Date of start of the outbreak 01/06/2012
    • Outbreak status Continuing (or date resolved not provided)
    • Epidemiological unit Farm
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds - 242 ? 72 ? 1 ? 0 ? 0
      • Affected population Commercial ostriches
  • Outbreak 2 - (LPAI_2012_H5N2_002) LPAI_2012_H5N2_002, Hessequa, WESTERN CAPE PROVINCE
    • Date of start of the outbreak 04/07/2012
    • Outbreak status Continuing (or date resolved not provided)
    • Epidemiological unit Farm
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds - 1710 ? 285 ? 0 ? 0 ? 0
      • Affected population Commercial ostriches
• Summary of outbreaks
  • Total outbreaks: 2
  • Total animals affected: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
    • Birds ? 1952 ? 357 ? 1 ? 0 ? 0
  • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
    • Birds - 18.29% - 0.05% - 0.28% - 0.05%
    • *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
  • One ostrich died. LPAI H5N2 isolated.
  • No further clinical signs.
  • 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 (2012).
• Control measures
  • Measures applied
    • Quarantine
    • Movement control inside the country
    • Screening
    • 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
    • Agricultural Research Council - Onderstepoort Veterinary Institute (ARC ? OVI) (National laboratory) ? Birds - gene sequencing - 29/06/2012 ? Positive
• Future Reporting
  • The event is continuing. Weekly follow-up reports will be submitted.

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