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Highly pathogenic avian influenza, South Africa (OIE, May 17 2011), H5N2/H6, Eight New Poultry Outbreaks

Giuseppe

Giuseppe

Emeritus
[Source: OIE, full page: (LINK). Extract, edited.]

Highly pathogenic avian influenza, South Africa


Information received on 17/05/2011 from Dr Bothle Michael Modisane, Chief Director Partnerships, Department of Agriculture, Forestry and Fisheries, Food Safety and Biosecurity, PRETORIA, South Africa
  • Summary
    • Report type Follow-up report No. 2
    • Start date 01/02/2011
    • Date of first confirmation of the event 16/03/2011
    • Report date 16/05/2011
    • Date submitted to OIE 17/05/2011
    • 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)
  • New outbreaks
    • Outbreak 1 (AI_WCP2011_12) AI_WCP2011_12, Oudtshoorn, WESTERN CAPE PROVINCE
      • Date of start of the outbreak 12/04/2011
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
        • Birds ? 919 ? 38 ? 0 ? 0 ? 0
        • Affected Population Clinical signs seen. HI test positive for H5 and H6.
    • Outbreak 2 (AI_WCP2011_11) AI_WCP2011_11, Oudtshoorn, WESTERN CAPE PROVINCE
      • Date of start of the outbreak 13/04/2011
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
        • Birds ? 249 ? 59 ? 0 ? 0 ? 0
        • Affected Population No clinical signs seen. HI test positive for H5 and H6.
    • Outbreak 3 (AI_WCP2011_14) AI_WCP2011_14, Oudtshoorn, WESTERN CAPE PROVINCE
      • Date of start of the outbreak 12/04/2011
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
        • Birds ? 2736 ? 129 ? 0 ? 0 ? 0
        • Affected Population Clinical signs present. HI test positive for H5.
    • Outbreak 4 (AI_WCP2011_16) AI_WCP2011_16, Oudtshoorn, WESTERN CAPE PROVINCE
      • Date of start of the outbreak 20/03/2011
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
        • Birds ? 553 ? 13 ? 0 ? 0 ? 0
        • Affected Population No clinical signs seen. HI test positive for H5. PCR positive
    • Outbreak 5 (AI_WCP2011_15) AI_WCP2011_15, Oudtshoorn, WESTERN CAPE PROVINCE
      • Date of start of the outbreak 12/04/2011
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
        • Birds ? 53 ? 3 ? 0 ? 0 ? 0
        • Affected Population No clinical signs seen.
    • Outbreak 6 (AI_WCP2011_17) AI_WCP2011_17, Oudtshoorn, WESTERN CAPE PROVINCE
      • Date of start of the outbreak 12/04/2011
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed - Slaughtered
        • Birds ? 107 ? 4 ? 0 ? 0 ? 0
        • Affected Population Clinical signs present. HI test positive for H5.
    • Outbreak 7 (AI_WCP2011_10) AI_WCP2011_10, Uniondale, WESTERN CAPE PROVINCE
      • Date of start of the outbreak 13/04/2011
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
        • Birds ? 239 ? 1 ? 0 ? 0 ? 0
        • Affected Population No clinical signs seen. HI test positive for H5 and H6.
    • Outbreak 8 (AI_WCP2011_13) AI_WCP2011_13, Oudtshoorn, WESTERN CAPE PROVINCE
      • Date of start of the outbreak 12/04/2011
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
        • Birds ? 508 ? 23 ? 0 ? 0 ? 0
        • Affected Population No clinical signs seen. HI test positive for H5 and H6.
  • Summary of outbreaks
    • Total outbreaks: 8
    • Total animals affected: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds ? 5364 ? 270 ? 0 ? 0 ? 0
    • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
      • Birds - 5.03% - 0.00% - 0.00% - 0.00%
      • * 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
    • 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.
  • Control measures
    • Measures applied
      • Quarantine
      • Screening
      • Vaccination prohibited
      • No treatment of affected animals
    • Measures to be applied
      • Stamping out
  • Future Reporting
    • The event is continuing. Weekly follow-up reports will be submitted.
(?)
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Re: Highly pathogenic avian influenza, South Africa (OIE, May 17 2011), H5N2/H6, Eight New Poultry Outbreaks

EU aids SA with avian flu outbreak

May 19 2011 17:12

Brussels - The European Commission has sent animal health experts to South Africa to help authorities contain an avian flu outbreak that has put a halt to ostrich meat exports.

The emergency veterinary team arrived on Wednesday, following the discovery of highly pathogenic avian influenza (HPAI) in ostrich farms in the Western Cape, the commission said Thursday.

The outbreak was first detected on April 9 in Klein Karoo Valley and in the following weeks the disease ?spread further in the area, endangering the local ostrich population that is kept for meat production?, it said.

The disease has not had any public health impact but it has had a major effect on animal welfare as well as ?serious economic effects on the local rural population?, said the European Union?s executive arm.

?In fact, following the outbreak exports of ostrich meat, usually destined for the EU market, have been immediately stopped to prevent the spread of the disease outside South Africa?s borders,? it said. The commission said the European experts will help control the disease to limit the risk to other poultry and eventually reduce trade restrictions.

South African experienced HPAI outbreaks in 2004 and 2006, but like the current cases they were not caused by the H5N1 strain of the virus, which can be fatal to humans, the EU executive said.
:tiphat:http://www.fin24.com/Economy/EU-aids-SA-with-avian-flu-outbreak-20110519
 
Re: Highly pathogenic avian influenza, South Africa (OIE, May 17 2011), H5N2/H6, Eight New Poultry Outbreaks

Source: http://www.google.com/hostednews/af...ocId=CNG.e3e72eab807cee44a824fb3173035b1f.4b1

Avian flu spreads in S.Africa despite ostrich slaughter
(AFP) ? 4 hours ago

JOHANNESBURG ? An avian flu outbreak that has halted ostrich meat exports from South Africa has spread to a total of eight farms despite the preventive slaughter of 10,000 birds, officials said Tuesday.

The outbreak, which was first detected on April 9 in South Africa's Western Cape province, has affected the entire Klein Karoo Valley, home to about 70 percent of the country's ostrich industry, the agriculture department said in a statement...
 
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