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The OIE’s approach to zones and compartments

The OIE’s approach to zones and compartments. David Wilson Director International Trade OIE. Workshop on OIE international standards Beijing 2005. zoning/compartmentalisation. ‘zoning’ and ‘regionalisation’ have the same meaning – ‘zoning’ is now used

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The OIE’s approach to zones and compartments

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  1. The OIE’s approach to zones and compartments David Wilson Director International Trade OIE Workshop on OIE international standardsBeijing 2005

  2. zoning/compartmentalisation • ‘zoning’ and ‘regionalisation’ have the same meaning – ‘zoning’ is now used • zoning and compartmentalisation are procedures implemented by a country • to define sub-populations of different animal health status within its territory • in accordance with the recommendations in the OIE Codes • for the purpose of international trade

  3. zoning/compartmentalisation • zoning/compartmentalisation allows a concentration of resources where there is greatest chance of success • in controlling or eradicating a disease • gaining or maintaining market access for certain commodities • where freedom of the whole country from the disease is not possible or practicable

  4. zoning/compartmentalisation • zoning applies to an animal sub-population defined on a geographical basis • compartmentalisation applies to an animal sub-population defined by management practices relating to biosecurity

  5. OIE definitions • Zone/Region • a clearly defined part of a country … • Compartment • one or more establishments (premises in which animals are kept) under a clearly defined common biosecurity management system …

  6. OIE definitions … containing an animal sub-population with a distinct health status with respect to a specific disease or diseases for which required surveillance, control and biosecurity measures have been applied for the purpose of international trade

  7. application of the concepts • the extent of a zone is established on the basis of natural, artificial or legal boundaries • the requirements for a compartment are established on the basis of management practices relating to biosecurity by the Veterinary Administration geographic considerations and sound management practices play a role in the application of both concepts

  8. zones FREE ZONE BUFFER ZONE major road INFECTED ZONE BUFFER ZONE railway river FREE ZONE

  9. Compartment Equipment BREEDING FLOCK FEED SUPPLY Feed Equipment Equipment Birds Feed Feed Equipment GROWING FLOCK Birds Equipment Birds Equipment Birds SLAUGHTER HOUSE GROWING FLOCK Equipment

  10. application of the concepts • there are Code recommendations for zones and compartments for diseases for which the concepts are appropriate • the recommendations depend on • epidemiology of the disease • environmental factors • appropriate and applicable biosecurity measures • necessary surveillance

  11. epidemiology • how does the disease spread ? • by live animals / humans ? • by meat / eggs / semen ? • by farm or veterinary equipment ? • by wind ? • by biting insects ? • what species does it affect ? • clinical signs ?

  12. environmental factors • temperature / humidity • natural barriers • ocean / major river • mountain range • artificial barriers • state / county boundary • road / rail system

  13. biosecurity measures • management regulations re biosecurity • dedicated equipment • staff showering in-and-out • animals housed vs free range • imposed movement controls

  14. surveillance • necessary surveillance for • presence / absence of pathogen • prevalence of disease • seasonal factors eg biting insects • strains of virus eg FMD • intermediate hosts eg tick-borne diseases

  15. application of the concepts • a Veterinary Administration must document the measures taken to • identify the animal sub-population • recognise its distinct health status • maintain its distinct health status • dossier will be as detailed as situation requires • compartmentalisation requires good cooperation and trust between industry and govt

  16. animal sub-population • dairy cattle herds in 4 adjacent counties • bison and buffalo in Alberta • wild pig population in a forest in Germany • poultry flocks managed by Tysons Inc as a unit • wild waterfowl in a water catchment area during the breeding season • beef cattle over 3 years of age in the UK

  17. examples of health status • infected • free with vaccination • free without vaccination • seasonally free • unknown

  18. application of the concepts • if an exporting country wants to define a zone or compartment within its territory for an OIE-listed disease, it needs to implement the recommendations stipulated in the Code for setting up and maintaining such a zone or compartment • or equivalent measures

  19. application of the concepts • an importing country should recognise the existence of this zone or compartment, subject to the application of the appropriate recommendations in the Code • with regard to the importation, or transit through its territory, of commodities from that zone or compartment

  20. Uses • in disease control / erradication campaign • progressive zoning/compartmentalisation allows stepwise approach • allows concentration of resources where greatest chance of success • in trade zone • to gain / maintain market access for certain commodities • where whole country freedom not possible / practicable

  21. World Organisation for Animal Health 12 rue de Prony 75017 Paris, France Tel: 33 (0)1 44 15 18 88 Fax: 33 (0)1 42 67 09 87 Email: oie@oie.int http://www.oie.int

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