Year | No. muni.# | No. cases | Proportion cases in cluster (%) | Cluster | Observed cases (expected cases) | No. muni.#in cluster | RR* | p-value | Time span | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 |  | Hu # | Br # | Hu # | Br # |  | Hu # | Br # |  | Hu # | Br # |  |  |
2002 | 119 | 343 | 174 | 9.0 | 19.0 | Â | Â | Â | Â | Â | Â | Â | Â |
 |  |  |  |  |  | 1 | 4 (0.5) | 15 (0.4) | 3 | 7.6 | 46.1 | <0.001 | 3 July - 30 July |
 |  |  |  |  |  | 2 | 13 (0.9) | 4 (0.5) | 5 | 14.3 | 7.6 | <0.001 | 12 June - 9 July |
 |  |  |  |  |  | 3 | 1 (0.1) | 5 (0.1) | 1 | 8.1 | 63.7 | <0.001 | 10 July - 30 July |
 |  |  |  |  |  | 4 | 11 (1.3) | 2 (0.6) | 6 | 8.9 | 3.2 | <0.001 | 19 June - 16 July |
 |  |  |  |  |  | 5 | 2 (0.7) | 7 (0.4) | 4 | 3.0 | 17.1 | 0.006 | 10 July - 6 Aug. |
2003 | 117 | 378 | 145 | 7.1 | 15.9 | Â | Â | Â | Â | Â | Â | Â | Â |
 |  |  |  |  |  | 1 | 18 (1.4) | 22 (0.6) | 7 | 13.5 | 39.4 | <0.001 | 3 July - 30 July |
 |  |  |  |  |  | 2 | 9 (0.7) | 1 (0.4) | 4 | 13.0 | 2.5 | 0.004 | 26 June - 16 July |
2004 | 117 | 396 | 99 | 2.5 | 5.0 | Â | Â | Â | Â | Â | Â | Â | Â |
 |  |  |  |  |  | 1 | 10 (1.5) | 5 (0.3) | 6 | 6.9 | 17.0 | <0.001 | 24 July - 20 Aug. |
2005 | 114 | 418 | 114 | 10.5 | 13.2 | Â | Â | Â | Â | Â | Â | Â | Â |
 |  |  |  |  |  | 1 | 17 (1.6) | 8 (0.4) | 6 | 10.9 | 20.1 | <0.001 | 26 June - 23 July |
 |  |  |  |  |  | 2 | 18 (1.8) | 2 (0.8) | 7 | 10.1 | 2.5 | <0.001 | 17 July - 13 Aug. |
 |  |  |  |  |  | 3 | 9 (1.1) | 5 (0.4) | 5 | 8.3 | 13.5 | <0.001 | 31 July - 27 Aug. |
2006 | 112 | 421 | 157 | 2.6 | 21.7 | Â | Â | Â | Â | Â | Â | Â | Â |
 |  |  |  |  |  | 1 | 2 (0.9) | 17 (0.4) | 4 | 2.1 | 42.9 | <0.001 | 17 July - 13 Aug. |
 |  |  |  |  |  | 2 | 5 (0.2) | 5 (0.1) | 1 | 22.4 | 54.6 | <0.001 | 17 July - 13 Aug. |
 |  |  |  |  |  | 3 | 1 (0.2) | 6 (0.1) | 1 | 4.5 | 64.2 | <0.001 | 17 July - 13 Aug. |
 |  |  |  |  |  | 4 | 3 (0.6) | 6 (0.3) | 3 | 5.4 | 19.8 | 0.005 | 21 Aug. - 10 Sep. |
2007 | 110 | 392 | 197 | 19.6 | 21.8 | Â | Â | Â | Â | Â | Â | Â | Â |
 |  |  |  |  |  | 1 | 3 (0.6) | 20 (0.4) | 3 | 4.8 | 51.3 | <0.001 | 26 June - 23 July |
 |  |  |  |  |  | 2 | 26 (1.8) | 5 (1.5) | 8 | 15.3 | 3.3 | <0.001 | 29 May - 25 June |
 |  |  |  |  |  | 3 | 24 (1.7) | 5 (1.0) | 7 | 14.6 | 5.0 | <0.001 | 19 June - 16 July |
 |  |  |  |  |  | 4 | 11 (0.9) | 4 (0.5) | 6 | 12.7 | 7.7 | <0.001 | 17 July - 6 Aug. |
 |  |  |  |  |  | 5 | 1 (0.2) | 5 (0.1) | 1 | 5.0 | 41.1 | 0.003 | 19 June - 16 July |
 |  |  |  |  |  | 6 | 2 (0.1) | 3 (0.1) | 1 | 19.7 | 46.0 | 0.030 | 24 July - 6 Aug. |
 |  |  |  |  |  | 7 | 10 (1.2) | 1 (0.6) | 4 | 8.2 | 1.8 | 0.038 | 10 July - 6 Aug. |