Predicting Rift Valley Fever Inter-epidemic Activities and Outbreak Patterns: Insights from a Stochastic Host-Vector Model
Fig 5
(a) and (b) A surface plot for the invasion probability when varying both vertical transmission, q1 and mosquitoes to hosts ratio, m0. (c) Numerical and analytical solution of the extinction probability Eq (18) when varying vertical transmission efficiency. (d) Analytical solutions of the extinction probability Eq (18) when varying vertical transmission efficiency for different values of the ratio female mosquitoes to hosts. The values of the remaining parameters in days are as follows: μ1 = 1/20, μ2 = 1/(8 ∗ 360), β12 = 0.55, β21 = 0.22, ϵ2 = 0.25 and α1 = 0.33, α2 = 19, m0 = 1.5 as baseline values.