Fig 6.
To model malaria importation, we define a travel FoI for each stratum, δ(t), and two set of terms to model the role of visitors in mosquito blood feeding and parasite transmission: the available visitor population Wδ and the NI for the visitor population, by patch xδ. To model blood feeding and transmission, we compute a patch-specific resident fraction for blood feeding, υ, the fraction of all biting that occurs on a resident of the spatial domain. From this, we can compute the visitor reservoir fraction, γ, the travel fraction for incidence, and other measures of malaria importation.