Table 1.
Collected blood samples. P. falciparum infected blood samples; year and locality collected from and likely origin of the infection when not within Thailand.
| Number of samples collected in the year | Total number | |||||||
| Province | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | Total | Outside Thailand |
| Maehongson | -- | 2 | 2 | 16 | 7 | 5 | 32 | 2 (6.3%)a |
| Tak | -- | 4 | 10 | -- | -- | 57 | 71 | 51 (72%)a |
| Kanchanaburi | 15 | -- | 63 | 61 | 77 | 50 | 266 | 37 (14%)a |
| Ubonratchathani | -- | 5 | 3 | 6 | 11 | -- | 25 | 3 (12%)b |
| Trat | -- | 9 | 5 | 4 | 12 | 4 | 34 | 7 (21%)c |
| Ranong | -- | 10 | 10 | 9 | 13 | 17 | 59 | 43 (73%)a |
| Yala | -- | -- | -- | -- | -- | 36 | 36 | 0 |
| Total | 15 | 30 | 93 | 96 | 120 | 169 | 523 | 143 (27%) |
The likely source of P. falciparum infection(s), when outside of the province the blood sample was collected from, are shown (Outside Thailand) as the total number and of all samples in that province (%) where a, b and c represent Myanmar, P.D.R. of Laos and Cambodia, respectively.