Table 1.

The eight selected combinations of $W_s,W_t$ and $W_t$ weigh the spatial, temporal distance, and case prevalence to calculate the strength of linkage.

Combination of weights	Spatial distance weight ($W_s$)	Temporal distance weight ($W_t$)	Case prevalence weight ($W_p$)
1	1/3	1/3	1/3
2	0.10	0.45	0.45
3	0.45	0.10	0.45
4	0.25	0.50	0.25
5	0.15	0.70	0.15
6	0.45	0.45	0.10
7	0.25	0.25	0.50
8	0.15	0.15	0.70

We assume that these weights sum up to one, with higher weights representing the higher effects of the particular aspect.