# Commission Decision of 20 November 2008 on guidelines for the purpose of the risk-based animal health surveillance schemes provided for in Council Directive 2006/88/EC (notified under document number C(2008) 6787) (Text with EEA relevance) (2008/896/EC), Division 6.3: MODEL TO DETERMINE THE RISK LEVEL OF FARMS AND MOLLUSC FARMING AREAS

Extent: E+W+S+N.I.

This model to determine the risk level (high/medium/low) of farms or mollusc farming areas comprises three steps:
Step IApproximation of the likelihood of the contraction of disease on the farm or in the mollusc farming area;
Step IIApproximation of the likelihood of the spread of disease from the farm or mollusc farming area;
Step IIICombining the estimates of risk levels resulting from steps I and II.
Step I
Approximation of the likelihood of the contraction of disease on the farm or in the mollusc farming area
Likelihood of the contraction of disease via water and due to the geographical proximity of farms and mollusc farming areas
Likelihood of the contraction of disease through movements of aquaculture animals
Level of risk
High
High
High
High
Low
Medium
Low
High
Medium
Low
Low
Low
Step II
Approximation of the likelihood of the spread of disease from the farm or mollusc farming area
Likelihood of the spread of disease via water and due to the geographical proximity of farms and mollusc farming areas
Likelihood of the spread of disease through movements of aquaculture animals
Level of risk
High
High
High
High
Low
Medium
Low
High
Medium
Low
Low
Low
Step III
Combining the estimates of risk levels resulting from steps I and II
Step I. Likelihood of the contraction of disease
High
M
H
H
Medium
L
M
H
Low
L
L
M
Low
Medium
High
Step II. Likelihood of the spread of disease

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Source: https://www.legislation.gov.uk/eudn/2008/896/annex/division/6/division/6.3 (the official version)
Page: https://openlegislation.uk/eu-decision-2008-896/annex/division-6/division-6.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.