Table 2.

Production type-specific transmissibility parameters.

parameterdescriptionposterior mean (95% credible intervals)
ψ1infectivity of commercial chicken outbreaks101.9 (75.7–131.0)
ψ2infectivity of duck and geese outbreaks9.5 (4.0–16.6)
ψ3infectivity of non-commercial chicken outbreaks44.3 (38.1–51.1)
φ1susceptibility of commercial chickens relative to non-commercial chickens0.005 (0.002–0.01)
φ2susceptibility of ducks and geese to non-commercial chickens0.16 (0.12–0.22)