Highly pathogenic avian influenza, South Africa (OIE, September 22 2011): Three New H5N2 Poultry Outbreaks

[Giuseppe]

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

Highly pathogenic avian influenza, South Africa


Information received on 22/09/2011 from Dr Bothle Michael Modisane, Chief Director , Department of Agriculture, Forestry and Fisheries, Animal Production and Health, PRETORIA, South Africa

• Summary
  • Report type Follow-up report No. 7
  • Start date 01/02/2011
  • Date of first confirmation of the event 16/03/2011
  • Report date 22/09/2011
  • Date submitted to OIE 22/09/2011
  • Reason for notification Reoccurrence of a listed disease
  • Date of previous occurrence 07/2006
  • Manifestation of disease Clinical disease
  • Causal agent Highly pathogenic avian influenza virus
  • Serotype H5N2
  • Nature of diagnosis Laboratory (advanced)
  • This event pertains to the whole country
  • Related reports
    • Immediate notification (11/04/2011)
    • Follow-up report No. 1 (06/05/2011)
    • Follow-up report No. 2 (16/05/2011)
    • Follow-up report No. 3 (10/06/2011)
    • Follow-up report No. 4 (04/07/2011)
    • Follow-up report No. 5 (05/08/2011)
    • Follow-up report No. 6 (26/08/2011)
    • Follow-up report No. 7 (22/09/2011)
• New outbreaks
  • Outbreak 1 (AI_WCP2011_37) AI_WCP2011_37, Oudtshoorn, WESTERN CAPE PROVINCE
    • Date of start of the outbreak 21/07/2011
    • Outbreak status Resolved (30/08/2011)
    • Epidemiological unit Farm
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds ? 526 ? 248 ? 0 ? 0 ? 526
      • Affected Population HI positive for H5 and H6
  • Outbreak 2 (AI_WCP2011_38) AI_WCP2011_38, Oudtshoorn, WESTERN CAPE PROVINCE
    • Date of start of the outbreak 01/08/2011
    • Outbreak status Resolved (05/09/2011)
    • Epidemiological unit Farm
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds ? 184 ? 98 ? 0 ? 0 ? 184
      • Affected Population HI positive for H5 and H6
  • Outbreak 3 (AI_WCP2011_39) AI_WCP2011_39, Oudtshoorn, WESTERN CAPE PROVINCE
    • Date of start of the outbreak 09/08/2011
    • Outbreak status Continuing (or date resolved not provided)
    • Epidemiological unit Farm
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds ? 322 ? 118 ? 0 ? 0 ? 118
      • Affected Population PCR positive
• Summary of outbreaks
  • Total outbreaks: 3
  • Total animals affected: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
    • Birds ? 1032 ? 464 ? 0 ? 0 ? 828
  • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
    • Birds - 44.96% - 0.00% - 0.00% - 80.23%
    • * 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
  • Commercial ostrich farms.
  • Farms tested positive on serology during routine surveillance, but tested negative on PCR and no virus could be found.
  • Diagnosis only confirmed after several follow-up PCR tests.
  • South Africa only reports outbreaks on confirmation on PCR tests.
  • Initially no clinical signs or mortalities were seen.
  • Stamping out in positive farms is taking place.
• Control measures
  • Measures applied
    • Stamping out
    • Quarantine
    • Screening
    • Vaccination prohibited
    • No treatment of affected animals
  • Measures to be applied
    • No other measures
• Future Reporting
  • The event is continuing. Weekly follow-up reports will be submitted.

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[Sally Furniss]

Re: Highly pathogenic avian influenza, South Africa (OIE, September 22 2011): Three New H5N2 Poultry Outbreaks

Translation from Thai

South African ostrich farms in bird flu because of heavy losses.
Friday, 23 September 2554.

Hope Island Horn Sep 23 - South Africa's ostrich farming industry is a heavy loss due to bird flu outbreak. April ostrich farmers have to get rid of a lot.

South African market ostrich percent 77 of the world market by exporting to the European Union (EU) to 90 percent, but the EU banned imports after bird flu on 9 April and spread quickly, said Anton. Krueger, president of the Chamber of Commerce said the South African ostrich, ostrich looks normal and can not get viruses because people will die. When heated. What are the main risk is infection may be a mutation.

Avian influenza virus epidemic in South Africa is the HIV 5 N 2 close to the HIV 5 N 1 virus in Asia since 2547 farms are found ostrich infectious single is being disposed of the whole farm. Until now, the ostrich in South Africa was eliminated after accounting for 33,000 to 1 in 4 of all the dead birds were killed to make fertilizers.

Normally, the South African ostrich production is 250,000 per year in revenue from exports was 2,100 million Rand (approximately USD 8,400 million) mainly to the export of meat. Down to the eggs and leather. Bird flu outbreak, the South African ostrich industry lost 108 million rand a month (approximately USD 432 million), one farmer said. Government compensation for the removal of the ostrich 2,000 rand (about 8,000 USD), equivalent to 80 percent of birds, but have not received any other support to be able to pay the workers. The larger farms had income from tourism will be closed. As a result, people lose their jobs. Expected to take at least three years, this industry will recover .- Thai News Agency.

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