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The OIEs approach to zones and compartments David Wilson Director International Trade OIE Workshop on OIE international standards Beijing 2005.

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Presentation on theme: "The OIEs approach to zones and compartments David Wilson Director International Trade OIE Workshop on OIE international standards Beijing 2005."— Presentation transcript:

1 The OIEs approach to zones and compartments David Wilson Director International Trade OIE Workshop on OIE international standards Beijing 2005

2 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 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 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 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 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 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 8 FREE ZONE BUFFER ZONE railway major road river zones BUFFER ZONE INFECTED ZONE

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

10 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 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 12 environmental factors temperature / humidity natural barriers ocean / major river mountain range artificial barriers state / county boundary road / rail system

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

14 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 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 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 17 examples of health status infected free with vaccination free without vaccination seasonally free unknown

18 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 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 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 21 World Organisation for Animal Health 12 rue de Prony Paris, France Tel: 33 (0) Fax: 33 (0)


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