Table 1.
Description of each cluster identified in the study area
| Cluster | Onset Distancea | Cases | Duration (days) | Time frame | Mean distance (SD)b |
|---|---|---|---|---|---|
| 1 | 0 | 9 | 34 | Sep/10-Oct/14 | 75.57(73.92) |
| 2 | 5 | 18 | 39 | Sep/15-Oct/24 | 110.6(53.38) |
| 3 | 10 | 24 | 31 | Sep/20- Oct/21 | 81.82(63.24) |
| 4 | 11 | 6 | 26 | Sep/21-Oct/17 | 81.53(49.31) |
| 5 | 15 | 4 | 17 | Sep/25-Oct/12 | 122(19.43) |
| 6 | 22 | 14 | 18 | Oct/02-Oct/20 | 114.4(58.77) |
| 7 | 22 | 6 | 25 | Oct/02-Oct/27 | 67.27(44.27) |
| 8 | 25 | 3 | 12 | Oct/05-Oct/17 | 64.91(25.71) |
| 9 | 29 | 2 | 7 | Oct/09-Oct/16 | 157.6(−) |
| 10 | 44 | 2 | 6 | Oct/24-Oct/30 | 165.0(−) |
aNumber of days between the onset date of index case of the outbreak and the onset date of the relative index case per cluster
bMean distance (standard deviation) of space-time links of cases per cluster within a distance less than 230 m in space and 12 days in time