For xde models, compute the FoI
# S3 method for class 'xde'
Exposure(t, y, pars)an xds object
The local force of infection (FoI or \(h\)) is a function of local daily entomological inoculation rate (dEIR or \(E\)) under a model for the probability of infection per infectious bite, \(b\) (called from \(F_b\), as defined by an \(\cal X\) model). The total FoI is a weighted sum of the local FoI and exposure to malaria while traveling, (\(T_h\)): $$h = (1-\delta) \; F_h(E, b) + \delta\; T_h(b,t)$$
Related: Exposure & F_foi.pois & F_foi.nb & travel_malaria