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. 2017 Dec;23(Suppl 1):S25–S32. doi: 10.3201/eid2313.170727

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Ebola virus disease clusters after interruption of the 2014–2015 Ebola outbreak in Liberia (green), Sierra Leone (blue), and Guinea (red). Lines reflect total weekly case numbers during the primary outbreak. Arrows indicate the first reported case in each postoutbreak cluster; color indicates the country where the cluster was first recognized (the March 2016 cluster began in Guinea, but spread to Liberia), and gradients indicate timespan of cluster. Circle sizes are proportional to cluster size, and the total number of confirmed and probable cases in each cluster is shown in the circles.