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. 2021 May 5;18(178):20201000. doi: 10.1098/rsif.2020.1000

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© 2021 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 4. — Recursive contact tracing versus single-step contact tracing. (a) Blue surface: epidemic size reduction as a function of MCT probability p_ct and app adoption rate p_app for recursive tracing (blue) and single-step tracing (green) for reference, for the OD dataset. θ_ct = θ_app = 15 min. (b) Normalized number of quarantine events versus epidemic size reduction for recursive (‘two-step’, blue) and single-step tracing (green). (c) Proportion of non-infected quarantined individuals for the same cases.