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Table 1 Definitions and explanations for symbols and abbreviations.

From: Target product profile choices for intra-domiciliary malaria vector control pesticide products: repel or kill?

Symbol Definition and explanation
a Availability of individual hosts for attack: rate at which a single mosquito encounters and then attacks a given single host or pseudo-host [24].
A Total availability of hosts and pseudo hosts: rate at which a single mosquito encounters and attacks all hosts and pseudo hosts [24].
b h The mean number of bites upon humans per emerging mosquito during its lifetime [15, 30].
b The mean number of bites upon all human and non-human hosts per emerging mosquito during its lifetime.
β h The mean number of infectious, sporozoite-infected bites upon humans per emerging mosquito during its lifetime [15, 30].
β The mean number of sporozoite-infected bites upon all hosts, regardless of their susceptibility to infection, per emerging mosquito during its lifetime.
c Cattle [12, 15, 24, 28, 42].
C h Crude coverage [12, 15, 24, 28, 42]: Proportion of people using LLIN as estimated in standardized malaria indicator surveys [82, 83].
C h,p Protective coverage: The proportion of all exposure of the human population which is effectively covered by LLIN use at times when that exposure actually occurs.
DDT Dichloro-diphenyl-dicloroethylene [14].
Δ Probability that a mosquito which encounters a host will be diverted from that host [12, 15, 24].
ε Host-encounter rate: rate at which a single host-seeking mosquito encounters a given single hosts [12, 15, 24, 28, 42].
E Emergence rate of mosquito vectors per year [12, 15, 24, 28].
EIR Entomological inoculation rate (mean number of infectious bites that an average individual human receives per year) [8487].
ϕ Probability that a mosquito which attacks a host will successfully feed upon that host [12, 15, 24, 28, 42].
f Feeding cycle length: measured as the number of days it takes a single mosquito to get from one blood feed to the next [12, 15, 24, 28].
g Gestation interval: number of days a mosquito takes to digest a blood meal and return to searching for oviposition site [12, 15, 24, 28].
h or c Humans or cattle, respectively [12, 15, 24, 28, 42].
IRS Indoor residual spraying [10, 49]
κ Human infectiousness to mosquitoes: probability of a vector becoming infected per human bite [29, 30, 88, 89].
LLIN Long-lasting insecticidal net [90]
λ Relative availability for attack of a given non-human host type, calculated as quotient of the mean individual attack availability of those hosts divided by the mean individual attack availability of humans not using LLINs [24].
μ Probability that a mosquito which attacks a host will die during the attack [12, 15, 24].
η o Oviposition site-seeking interval: number of days a mosquito takes to find an oviposition site once it starts searching for it [12, 15, 24, 28].
η v Host-seeking interval: number of days a mosquito takes to find and attack a vertebrate host [12, 15, 24, 28].
net or 0 LLIN user or non-user, respectively
N Number of hosts [12, 15, 24, 28].
θ Δ Excess proportion of mosquitoes which are diverted while attempting to attack a human while using an LLIN [24].
θ μ Excess proportion of mosquitoes which are killed while attacking a human while that person is using an LLIN [24].
θ μ,pre Excess proportion of mosquitoes which are killed before blood feeding while attacking a human while using an LLIN.
θ μ,post Excess proportion of mosquitoes which are killed after blood feeding while attacking a human while that person is using an LLIN.
Ω or 0 Intervention package scenarios consisting of a specific coverage with LLINs with specific deterrent and toxic properties, with 0 denoting baseline conditions with negligible net coverage, simulated by setting C h = 0.001 [24].
π i The proportion of normal exposure to mosquito bites upon humans lacking LLINs, which occurs indoors at times when nets would normally be in use [2527, 37].
p or u Specifies values of parameters for humans while actually using and protected by an LLIN, or those which are unprotected who do not use or are outside of their nets, respectively.
P Probability that a resting mosquito survives any one day [15, 91].
P f Probability that a mosquito survives a single complete feeding cycle [12, 15, 24, 28, 30].
P ov Probability that a mosquito survives any full day of the oviposition site-seeking interval or host-seeking interval [12, 15, 24].
Q h Human blood index: the proportion of all blood meals from all hosts which are obtained from humans [12, 15, 24, 28, 30].
γ Probability that a mosquito attacks an encountered host [12, 15, 24].
ψ Relative exposure of different hosts other than unprotected humans to infectious mosquito bites: calculated as a ratio of exposure of those hosts to exposure of humans not using nets [24].
WHO World Health Organization
z Availability of blood from an individual host: rate at which a single mosquito encounters, attacks and successfully feeds upon a given single host [24]
Z,Z h ,Z c Total availability of blood from all hosts, all humans and all cattle, respectively: rate at which a single mosquito encounters, attacks and successfully feeds upon these host sets [24]
Z a Total availability of aquatic habitats: rate at which a single mosquito encounters and successfully oviposits into all aquatic habitats