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Bluetongue surveillance system in Belgium: a stochastic evaluation of its risk-based approach effectiveness.
freedom of infection substantiation. Field data collected from the previous year’s outbreaks in Belgium were used to determine the risk groups to be considered. RESULTS: The best sensitivities at herd ...
Redesigning the serological surveillance program for notifiable avian influenza in Belgian professional poultry holdings.
all data sources, was run to obtain sensitivity estimates for the detection of an infected bird in the different risk groups identified. An optimal number of holdings for each risk group was then ...