Nature - USA (2020-08-20)

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Extended Data Fig. 4 | Serial interval distribution and transmission chains.
a, Estimated serial interval distributions for the whole study period (overall)
and for the pre-lockdown (before 24 February 2020) and post-lockdown
(after 24 February 2020) periods. b, Observed transmission clusters from
reported and household contacts. Each node (circle) represents a positive
infection, and the edges (the line connecting the nodes) connect positive
infections that reported contacts or are household members. The different
colours represent different clusters of infection.

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