Parameter name | Parameter description | Distribution | |
---|---|---|---|
LPAIV | HPAIV | ||
Infectious period distribution | Length of the infectious period for IAV in chickens | Gamma: shape = 8.1388, scale = 0.9596 | Weibull: shape = 1.965, scale = 2.90 |
Latent period distribution | Length of the latent period for IAV in chickens | Gamma: shape = 0.8248, scale = 0.4446 | Gamma: shape = 0.89, scale = 0.7145 |
Adequate contact rate | The number of contacts per unit time that a broiler has with other broilers that are adequate to transmit IAV | Uniform (0.69–0.77) | PERT: minimum = 2.5, mode = 4.77, maximum = 9.0 |
Disease mortality | Proportion of IAV infected birds that succumbs to disease | Fixed: 0.5% | Fixed: 100% |
Flock size | The number of broiler chickens per house | Log-normal: log mean = 10.0212, log SD = 0.3883 truncated at 13,000 and 50,000 birds | Same as for LPAIV |
FluDETECT positive proportions | The fraction of positives detected by FluDETECT in different pooling schemes | Fixed: 58.0%, 55.1% and 44.9% for pools of 5, 6 and 11 respectively | Scenario 1: 71% [12], Scenario 2: 71%, 68.1%, 57.9% for pools 5, 6 and 11 respectively |