Fig. 2From: Transmission dynamics and control of two epidemic waves of SARS-CoV-2 in South KoreaTypes of clusters in South Korea in the first and second epidemic waves. Temporal distribution of the clusters of COVID-19 cases outside of the Daegu-Gyeongsangbuk region in South Korea. The vertical grey dashed line divided the study period on first epidemic wave (19 January–19 April 2020) and second epidemic wave (20 April–11 August 2020)Back to article page