Fig. 4.

Effect of local controls for sequential parameter estimation using Model D with outbreak data censored at time T days. (A) Projected number of infected flocks, number of culled flocks and duration of outbreak. (B) Effective control based on minimising the cost function Eq. (4) and varying the cost associated with culling of a single flock (c₁), the cost associated with vaccination of one hundred birds (c₂), and the cost associated with the monetary impact of a single infected flock (c₃).