Negative Binomial Force of Infection

Usage

# S3 method for class 'nb'
F_foi(eir, b, pars)

Arguments

eir

the daily eir for each stratum

b

the probability of infection, per bite

pars

an xds object

Value

a numeric vector of length nStrata

Details

This function computes the local daily FoI, $h$ as a function of the local daily EIR, $E$, under a negative binomial model for the distribution of bites per person, and $b$, the probability of infection per infective bite: $$h=\varphi \log \frac{1+bE}{\varphi }$$ The expression is derived by solving the expression in F_ar.nb for $E$ This negative binomial model uses the mu $=bE$ and size $=\varphi$ parameterization (see pnbinom).

See also