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Fig. 1 | BMC Medicine

Fig. 1

From: Real-time monitoring the transmission potential of COVID-19 in Singapore, March 2020

Fig. 1

Cluster network of the cases in Singapore for the COVID-19 global pandemic as of March 17, 2020. The pink circles represent the cases linked to Wuhan, the green circles represent the non-Wuhan-related case importations, and the blue circles represent cases with no travel history to China. The larger dotted circles represent the COVID-19 disease clusters. Each blue arrow represents the direction in which the disease was transmitted. Pink arrows represent immediate family. Dates below the circles are the dates of case reporting

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