Table 2. Definitions of the derived parameters.

Symbol	Definition and explanation	Units
Ch,p	Protective coverage	One
ac	Mean availability of individual cow for attack: rate at which a single mosquitoencounters and then attacks a cow or pseudo-host.	Per time per animal
ah	Mean availability of individual human for attack: rate at which a single mosquitoencounters and then attacks a human or pseudo-host.	Per time per human
ah,p	Availability of individual protected human	Per time per protected human
ah,u	Availability of individual unprotected human	Per time per unprotected human
A, Ah, Ac	Total availability of all hosts, all humans and all cattle, respectively: rate at which asingle mosquito encounters, attacks upon these host sets	Per time
z, zh, zc	Mean availability of blood from all hosts, all humans and all cattle, respectively: rate at whicha single mosquito encounters, attacks and successfully feeds upon these host sets.	Per time
Z, Zh, Zc	Total availability of blood from all hosts, all humans and all cattle, respectively: rate at whicha single mosquito encounters, attacks and successfully feeds upon these host sets.	Per time
Qh	Human blood index: the proportion of all blood meals from all hosts which are obtained from humans.	One
Qh,0	The baseline human blood index in the absence of any protection measure	One
Pγ	Probability of surviving host attack per feeding cycle	One
η0	Oviposition site-seeking interval; number of days a mosquito takes to findan oviposition site once it starts searching for it	Time
ηv	Host seeking interval: number of days a mosquito takes to find and attack a vertebrate host	Time
Pf	The survival rate per feeding cycle	Per time
f	Feeding cycle length: measured as the number of days it takes a singlemosquito to get from one blood feed to the next.	Time
E	Emergence rate of mosquito vector	Per time
βh	The total number of infectious bites on all humans	One
β	The total number of sporozoite infected bites in all hosts per mosquito lifetime	One
EIR	Entomological inoculation rate (mean number of infectious bites thatan average individual human receives per year).	Per time
EIRh,Ω	absolute EIR for an average community member in a given intervention scenario	Per time
EIRh,u	EIR for non-users	Per time
ψh,u	The immediately relative exposure of non-users benefiting only from communal protection	One
g	Gestation interval: number of days a mosquito takes to digest a blood mealand return to searching for oviposition site.	Time
Pg	Combined probability that a vector survives gestation	One
x	Mosquito age	Time
Sx	The sporozoite infection prevalence of mosquitoes at each age	One
χ	Human infectiousness to mosquitoes: probability of a vector becoming infected per human bite.	One
ρ	Overall proportion of personal protection against mosquito bites provide by using a givenprotective measure.	One
ψ↑h,u,Ω	The immediate impact on vector population assuming a reduction of human infectivity.	One
Pf x/f	Estimation of daily cycle and cumulative survival of mosquitoes up to each age (x).	One

The subscripts used are given in bracket; human (h), protected (p), unprotected (u), animals (c), a baseline condition with no personal protection coverage (0), intevention package scenarios consisting of a specific coverage (Ω).