In the modular design, the xds_info_dynamical_components interact through two well-designed interfaces:
Infection Dynamics: the X and Y components communicate through an interface with three parts:
Blood Feeding – a coherent framework for modeling blood feeding based on the concept of blood host availability. Models can set blood feeding rates without using it, but the parameter values should satisfy some constraints:
the blood feeding rate is 0 (\(f=0\)) if there are no hosts available;
the human fraction is 0 (\(q=0\)) if there are no humans available;
the human fraction is 1 (\(q=1\)) if only humans are available;
Transmission – under the blood feeding model, compute the biting distribution matrix (\(\beta\)) that guarantees every bite and blood meal is accounted for: it updates the local fraction (if there are visitors), and then outputs the local daily entomological inoculation rate (EIR or \(E\)) for all the strata; and the net infectiousness (NI or \(\kappa\)) in each patch.
Exposure – compute the force of infection (FoI) from:
the local daily EIR (\(E\))
the travel EIR (\(\delta\))
a model of partial immunity (\(b\)) from the X component
Mosquito Ecology: the L and M components communicate through an interface with three parts:
Patch Dynamics – adult mosquito populations are distributed in patches (see xds_info_patch_dynamics)
Aquatic Habitats – aquatic habitats are located in patches (see xds_info_aquatic_habitats)
Egg Laying – The egg laying interface uses search weights to distribute eggs laid by adults in a patch to the aquatic habitats in that patch