Table 1. Parameters included in the models.

Parameter	Interpretation	Value	Source
H	Total number of host population	-	-
P	Total number of parasite population	-	-
E	Total number of free-living infective stage population (eggs)	-	-
K	Host population carrying capacity	1000	-
b	Instantaneous birth rate of host (day-1)	0.0052	3.8 young/female/year [35]
d	Instantaneous death rate of host due to all causes except parasites (day-1)	0.00123	2.3 years lifespan [36]
μ1	Instantaneous death rate of adult parasite (day-1)	0.001369	1–2 years lifespan [41,42]
μ2	Instantaneous death rate of adult parasite due to density dependent effects (day-1)	0.0009	-
h	Instantaneous rate of production of infective parasite eggs (worm-1day-1)	179 000	179000 eggs/worm/day [21,44]
β	Instantaneous rate of ingestion of free-living infective eggs (host-1day-1)	4.25e-12	-
k	Aggregation parameter of the negative binomial distribution	0.393	[44]
δ	Instantaneous death rate of eggs (day-1)	0.015	-
ρ	Host removal rate (day-1)	-	-
σ	Anthelmintic efficacy (day-1)	-	-
φ	Eggs removal rate (day-1)	-	-