Cluster | Year | Coordinates/radius (km) | Observed† | Expected‡ | LR* |
1 | 2015 | 39.49, 20.28/763 | 1560 | 629 | 514 |
2 | 2014 | 33.44, 14.24/73 | 261 | 29 | 346 |
3 | 2014 | 1.63, 30.89/0 | 251 | 26 | 342 |
4 | 2018 | 36.74, 4.10/1423 | 564 | 155 | 325 |
5 | 2018 | 5.21, 15.37/1726 | 1065 | 455 | 308 |
6 | 2016 | 23.51, 33.27/952 | 833 | 326 | 282 |
7 | 2014 | 31.75, 106.49/486 | 245 | 35 | 265 |
8 | 2018 | 25.73, 21.40/255 | 203 | 40 | 168 |
9 | 2014 | 10.11, 48.87/296 | 134 | 17 | 159 |
10 | 2015 | 11.789, 99.79/1133 | 297 | 87 | 157 |
11 | 2016 | 23.25, 19.72/0 | 228 | 60 | 137 |
12 | 2017 | 32.84, 12.59/19 | 239 | 66 | 135 |
*p<0.001.
†Number of observed cases in a cluster.
‡Number of expected cases in a cluster.
LR, likelihood ratio.;