eq_W_get_alpha: Function to estimate probability of worm establishment per...
In cmhoove14/DDNTD: Density Dependence in Neglected Tropical Diseases

View source: R/schisto_age_structured_models.R

Assuming observed worm burden prior to any intervention is at euilibirum, we can estimate the worm acquisition rate as a function of this equilibirum worm burden and host and worm turnover (mortality) rates. The only component of the worm acquisition rate that is unkown is the probability of worm establishment per cercarial exposure, alpha, which we can estimate from equilibirum mean worm burden and known parameters

1	eq_W_get_alpha(W_C, omega_c, mu_W, mu_H_C, theta, I_P, N_eq)

`W_C`	equilibrium mean worm burden in the child population
`omega_c`	contamination/exposure coefficient for children
`mu_W`	daily mortality rate of adult worms
`mu_H_C`	mortality rate of children
`theta`	daily cercarial shedding rate of infected snails
`I_P`	infected snail prevalence
`N_eq`	equilibrium snail population size