Direct (βd) and indirect (βi) transmission coefficients employed in model simulations.

Values are displayed as a range followed by the sampling intensity (n) employed equally over the range. Indirect transmission coefficients decreased in value and sampling range with increasing prion survival (γ), and increased in value and sampling range from density-dependent to frequency-dependent transmission.数据以区间形式呈现，其后标注了在该区间内均匀采用的采样强度（sampling intensity，记为n）。随着朊病毒存活（prion survival）参数γ的升高，间接传播系数（indirect transmission coefficients）的取值与采样区间均会缩小；而当传播模式从密度依赖型传播（density-dependent transmission）转向频率依赖型传播（frequency-dependent transmission）时，间接传播系数的取值与采样区间则会相应增大。