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. 2020 Oct 29;10:18680. doi: 10.1038/s41598-020-75771-6

Figure 2.

Figure 2

Spatio-temporal distribution of the number of WSSCI per half grid (WSSCIphg) in Hokkaido and in the target areas, Kitami and Sapporo. The colors of grid squares represent the total WSSCIphg throughout every several half grid squares, of which red is large, blue is small, and white is zero. (a) The distribution of total weekly WSSCIphg throughout every 400 half grid squares in Hokkaido, Japan. The blue marker denotes the location of a cluster (Kitami cluster is [43.804878, 143.897225] and Sapporo cluster is [43.068700, 141.350767]). (b,c) [Top] The distribution of total weekly WSSCIphg throughout every four half grid squares in Kitami and Sapporo, respectively, surrounded by a rectangle. [Bottom] The distribution of total daily WSSCIphg throughout every four half grid squares between 02/19 and 02/25 in Kitami surrounded by a rectangle and between 02/11 and 02/17 in Sapporo surrounded by a rectangle, respectively. The figure shows 3 days before and 3 days after the announcement of the first patient who was positive in each city (over a total of 7 days).