The Interaction between Vector Life History and Short Vector Life in Vector-Borne Disease Transmission and Control
Fig 2
The effect of dispersion on the important epidemiological quantities in VBDs.
The equilibrium average biting rate per midge (left), the probability of an inoculated midge surviving its EIP (right) for Culicoides genus midges. The mortality rate is μ = 0.22 per day (Culicoides genus midge mortality rate at 20°C [13]), the asymptotic biting rate α = 0.18 per day (Culicoides genus midge inverse mean gonotrophic cycle duration at 20°C [22]), mean EIP σ−1 = 8.4 days (the posterior median for Culicoides genus midge mean EIP duration [19]). The red dots indicate the results derived from the classical Ross-Macdonald assumptions, other colour dots represent EIP dispersion estimates in the literature: BTV-1 spread by C. bolitinos midges [19] and Trypanosoma brucei brucei spread by tsetse flies [23]. Each quantity is found to be increasing with increasing dispersion.