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Fig. 3 | Malaria Journal

Fig. 3

From: Theory of reactive interventions in the elimination and control of malaria

Fig. 3

Time course for SIS models of RCD with \(\varvec{R}_{0} = 4\) showing a Prevalence; b Treatent rate; c Targeting ratio; and d Escape probability. The models were initialized at the non-intervention endemic steady state for parameter values corresponding to \(R_{0} = 4\), the infectious period is assumed to be 200 days and the transmission parameter, \(\beta\), corresponds to \(R_{0} = 4\). The RCD parameter values are for model (a): \(\uptau = 5\) and \(\upiota \upnu = 150\) (corresponding to parameter values in Fig. 2a); for model (b): \(\varphi = 150\) (corresponding to parameter values in Fig. 2b); for model (c): \(\upiota = 10\) and \(\upnu = 15\) (intermediate between the parameter values in Fig. 2c and d). The targeting ratio is not defined for model (b) so is not presented in c. The simulation results show that in high transmission settings, the more realistic model for RCD (c) only leads to a small reduction in prevalence since the targeting ratio remains close to 1

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