Table 1. Transmission mechanisms, fitted transmission coefficients (β and one of wS,βR,Ym,Zm), and population characteristics at the developed stage of the disease (adult prevalence πa and male/female prevalence ratio rmf).
Transmission mechanism | Direct/Indirect transmission and seasonality | Rut transmission | Fitted parameters and developed stage |
---|---|---|---|
TM1 | Equal transmission between all deer classes (ψuv = 1); wS fitted. | No | β = 0.60 wS = 1.68 πa = 0.41 rmf = 1.18 |
TM2 | Equal transmission between all deer classes (ψuv = 1); wS = 1 | Yes | β = 0.49 βR = 0.48 πa = 0.30 rmf = 1.56 |
TM3 | Food-mediated transmission (high to males, medium to females, low to juveniles); wS fitted. | No | β = 0.82 wS = 1.02 πa = 0.23 rmf = 1.86 |
TM4 | Food-mediated transmission (high to males, medium to females, low to juveniles); wS = 1 | Yes | β = 0.80 βR = 0.04 πa = 0.23 rmf = 1.90 |
TM5 | Equal transmission between all deer classes, but male susceptibility is higher (Ym>1); wS = 1 | No | β = 0.49 Ym = 1.56 πa = 0.32 rmf = 1.58 |
TM6 | Increased male-to-male transmission (Zm>1), equal transmission between other deer classes; wS = 1. | No | β = 0.49 Zm = 1.66 πa = 0.31 rmf = 1.55 |