Table 1.
Sampled rivers and stations in Laos.
| River | Tributary of | Stations | Region | Geographical coordinates | B. pseudomallei | ||
|---|---|---|---|---|---|---|---|
| Latitude | Longitude | D | R | ||||
| Mekong | S. China Sea | 6 | N | 19.95601 | 102.24113 | − | − |
| N* | 17.89870 | 101.62397 | − | − | |||
| S* | 17.97276 | 102.50410 | − | + | |||
| S* | 17.39714 | 104.79999 | − | + | |||
| S* | 16.00503 | 105.42449 | − | + | |||
| S | 15.10721 | 105.79878 | − | + | |||
| Nam Ou | Mekong | 1 | N | 20.08642 | 102.26406 | − | − |
| Nam Suang | Nam Pa | 1 | N | 19.97931 | 102.24728 | − | − |
| Nam Pa | Mekong | 1 | N | 19.96049 | 102.28289 | − | − |
| Nam Khan | Mekong | 1 | N | 19.78600 | 102.18311 | − | − |
| Houay Khan | Nam Khan | 1 | N | 19.75995 | 102.18103 | − | − |
| Houay Pano | Nam Khan | 3 | N | 19.86034 | 102.17262 | − | − |
| N | 19.85903 | 102.17061 | − | − | |||
| N | 19.85263 | 102.16901 | − | − | |||
| Nam Lik | Nam Ngum | 1 | N* | 18.63280 | 102.28104 | − | − |
| Nam Mi | Mekong | 1 | N* | 17.91917 | 101.68856 | − | − |
| Nam Ngum | Mekong | 4 | S* | 18.52502 | 102.52631 | − | − |
| S* | 18.35581 | 102.57204 | − | + | |||
| S* | 18.20269 | 102.58588 | − | + | |||
| S* | 18.17879 | 103.05593 | − | + | |||
| Nam Thon | Mekong | 1 | S* | 18.09152 | 102.28159 | − | + |
| Nam Sang | Mekong | 1 | S* | 18.22284 | 102.14222 | − | + |
| Nam Mang | Mekong | 1 | S* | 18.37019 | 103.19846 | − | + |
| Nam Gniep | Mekong | 1 | S* | 18.41756 | 103.60217 | − | + |
| Nam Xan | Mekong | 1 | S* | 18.39523 | 103.65408 | − | + |
| Nam Kading | Mekong | 1 | S* | 18.32517 | 103.99924 | − | + |
| Nam Hinboun | Mekong | 1 | S* | 17.72699 | 104.56798 | − | − |
| Nam Xot | Nam Theun | 1(0) | S* | 17.93148 | 105.13257 | − | nd |
| Nam Theun | Mekong or Xe Bangfai† | 1(0) | S* | 17.84229 | 105.05841 | − | nd |
| Xe Bangfai | Mekong | 3(1) | S* | 17.49436 | 105.42959 | − | nd |
| S* | 17.41563 | 105.20320 | − | nd | |||
| S* | 17.07782 | 104.98496 | − | + | |||
| Xe Banghieng | Mekong | 1 | S* | 16.09804 | 105.37625 | − | + |
| Xe Bangnouan | Mekong | 1 | S | 16.00290 | 105.47937 | + | + |
| Xe Don | Mekong | 1 | S | 15.12390 | 105.80748 | + | + |
Stations: number of sampled stations in the dry season (rainy season in brackets if different). Region: geographical classification based on38,39; stations marked * belong to the centre of Laos (reference: Department of Tourism Marketing, Ministry of Information, Laos). B. pseudomallei: presence of B. pseudomallei by at least one detection method in river water and/or sediment. N = north, S = south, D = dry season, R = rainy season, nd = no data. †Flow direction depends on water level regulations of the Nam Theun dam lake. Geographical coordinates in degrees (WGS 1984) (dry season).