Table 1.
Flooding characteristics, total cases, number of cases and monthly incidence of human leptospirosis at the regional level during flooding 2010–2012 in Thailand
| Year | 2010 | 2011 | 2012 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Flooding characteristics | |||||||||
| Months of flooding period* | August–October† | May–December | May–June, September | ||||||
| Number of flooded districts (%) | 454 (49·03) | 505 (54·54) | 365 (39·42) | ||||||
| Leptospirosis case report | |||||||||
| During flood period | During flood period | During flood period | |||||||
| Region | Total | No. cases (% total cases) | Monthly incidence (per 105) | Total | No. cases (% total cases) | Monthly incidence (per 105) | Total | No. cases (% total cases) | Monthly incidence (per 105) |
| Central | 270 | 106 (39·26) | 0·16 | 270 | 248 (91·85) | 0·14 | 176 | 92 (52·27) | 0·08 |
| Eastern | 77 | 34 (44·16) | 0·28 | 68 | 60 (88·24) | 0·19 | 64 | 38 (59·38) | 0·19 |
| Northeastern | 3382 | 1454 (42·99) | 2·24 | 2507 | 2209 (88·11) | 1·28 | 2294 | 1176 (51·26) | 1·09 |
| Northern | 268 | 134 (50·00) | 0·71 | 476 | 436 (91·60) | 0·87 | 488 | 311 (63·73) | 0·99 |
| Southern | 943 | 401 (42·52) | 2·38 | 578 | 367 (63·49) | 0·55 | 1046 | 596 (56·98) | 1·42 |
| Overall | 4940 | 2129 (43·10) | n.a. | 3899 | 3320 (85·15) | n.a. | 4068 | 2213 (54·40) | n.a. |