Low pathogenic avian influenza (poultry), Netherlands (OIE, May 13 2011): H7N7 in free range laying hens

[Giuseppe]

See also on the same issue: http://www.flutrackers.com/forum/showthread.php?goto=newpost&t=167743

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

Low pathogenic avian influenza (poultry), Netherlands


Information received on 13/05/2011 from Dr Christianne Bruschke, Chief Veterinary Officer , Ministry of Agriculture, Nature and Food Quality, Ministry of Agriculture, Nature and Food Quality, The Hague, Netherlands

• Summary
  • Report type Immediate notification
  • Start date 11/05/2011
  • Date of first confirmation of the event 12/05/2011
  • Report date 13/05/2011
  • Date submitted to OIE 13/05/2011
  • Reason for notification Reoccurrence of a listed disease
  • Date of previous occurrence 25/03/2011
  • Manifestation of disease Clinical disease
  • Causal agent Low pathogenic avian influenza virus
  • Serotype Pending
  • Nature of diagnosis Laboratory (advanced)
  • This event pertains to a defined zone within the country
• New outbreaks
  • Outbreak 1 (AI 2011-2) - Kootwijkerbroek, GELDERLAND
    • Date of start of the outbreak 11/05/2011
    • Outbreak status Continuing (or date resolved not provided)
    • Epidemiological unit Farm
    • Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
      • Birds ? 8800 ? 12 ? 0 ? 8788 ? 0
      • Affected Population Free range laying hens
• Summary of outbreaks
  • Total outbreaks: 1
  • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
    • Birds - 0.14% - 0.00% - 0.00% - 99.86%
    • * 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
  • Screening of all poultry in 3 km zone. Serotype is H7.
  • 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 (2010).
• Control measures
  • Measures applied
    • Stamping out
    • Movement control inside the country
    • Screening
    • Zoning
    • Vaccination prohibited
    • No treatment of affected animals
  • Measures to be applied
    • No other measures
• Diagnostic test results
  • Laboratory name and type Central Veterinary Institute, Lelystad (National laboratory)
    • Tests and results: Species ? Test - Test date ? Result
      • Birds - polymerase chain reaction (PCR) - 12/05/2011 ? Positive
• Future Reporting
  • The event is continuing. Weekly follow-up reports will be submitted.

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[Gert van der Hoek]

Re: Low pathogenic avian influenza (poultry), Netherlands (OIE, May 13 2011): H7 in free range laying hens

Re: Low pathogenic avian influenza (poultry), Netherlands (OIE, May 13 2011): H7 in free range laying hens

All other farms in the 3km zone tested negative.

AGD

According to the 2nd OIE-report on this outbreak the strain is H7N7.