Skip to main content

Table 1 System variables in the SWB model

From: Refined stratified-worm-burden models that incorporate specific biological features of human and snail hosts provide better estimates of Schistosoma diagnosis, transmission, and control

System variable

Symbols

SWB prevalence strata:

 

  k Δw ≤ w < (k + 1)Δw with worm burden increment Δw

\( \begin{array}{c}\hfill \left\{{h}_k(t):k=0,1,\dots \right\}\hfill \\ {}\hfill {\displaystyle {\sum}_k{h}_k=1}\hfill \end{array} \)

Demographically structured SWB:

 

 Child

h C k (t)

 Adult

h A k (t)

Population densities per unit habitat:

 

 Human

H (t)

 Snail (susceptible, infected, patent)

N(t) = x(t) + y(t) + z(t)