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Figure 3 | EPJ Data Science

Figure 3

From: The impact of digital contact tracing on the SARS-CoV-2 pandemic—a comprehensive modelling study

Figure 3

The effective reproductive number reached just from quarantining reported symptomatic carriers, \(R_{\mathrm{e;Q}}\), is shown for four different values of \({\eta _{as}}\) (asymptomatic infectivity scaling) as calculated from Eq. (9). Top panel: In the case of \({\eta _{as}}= 1\), \(R_{\mathrm{e;Q}}\) depends only on the product of α (symptomatic fraction) and \({f_{m}}\) (fraction reported and tested) and is shown for two values of \({R_{0}}\). Lower three panels: For each combination of \({\eta _{as}}\) and α, the infection probability was adjusted to obtain \({R_{0}}=3\)

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