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Table 2 Parameter definitions and values. \( \beta \) and ρ are stated across the age groups 0–2, 2–5, 5–15, 15–70+. Parameter values as [11] for Ascaris and [10] for S. mansoni

From: The importance of patient compliance in repeated rounds of mass drug administration (MDA) for the elimination of intestinal helminth transmission

Parameter (units) Definition Value: A. lumbricoides Value: S. mansoni
\( {\mathrm{R}}_0 \) Basic reproductive number or ratio 2.12 1.55
\( \upbeta, \uprho \) Relative contact rates, relative contribution to the environmental reservoir 0.22, 1.88, 1, 0.53 0.036, 0.17, 1, 0.069
\( \upgamma \) Egg production density dependence parameter 0.07 0.0006
\( \mathrm{k} \) Shape parameter of negative binomial distribution of worms amongst hosts 0.9 0.24
\( \upsigma \) (/year) Inverse of worm lifespan 1 0.1754
\( \uplambda \) (epg/female worm) Net egg output per female worm 3983 0.14
reservoir decay rate (/year) Rate of decay of eggs in the environmental reservoir 6 3
drug efficacy Proportion of a host’s worms removed by a single treatment 99% (Albendazole) 86% (Praziquantel)