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The mean prevalence of infection (latent, infected and immune hosts) in hosts over time in the absence of vector control, for levels of human commuting (δ) ranging from 0.1–0.5 (a) and 0.6–1.0 (b). The lower panels show the corresponding mean entomological inoculation rate (EIR), i.e. the mean number of infectious bites received per human per day, over time.
